---
title: "65 Rigorous Quotes by 63 authors"
description: "Browse 65 Rigorous quotes by 63 authors. Discover the best Rigorous sayings and thoughts."
image: "https://sms4smile.com/quotes/i/1e5/morris-kline-25507_definition_there-is-no-rigorous-definition-of-rigor_1369806.png"
---

> [There is no rigorous definition of rigor.](https://sms4smile.com/quotes/morris-kline/there-is-no-rigorous-definition-of-rigor/)

[Morris Kline](https://sms4smile.com/quotes/author/morris-kline/)

[Image](https://sms4smile.com/quotes/i/1e5/morris-kline-25507_definition_there-is-no-rigorous-definition-of-rigor_1369806.png)

> [“...teaching was the most rigorous form of learning.”](https://sms4smile.com/quotes/kim-stanley-robinson/teaching-was-the-most-rigorous-form-of-learning/)

[Kim Stanley Robinson](https://sms4smile.com/quotes/author/kim-stanley-robinson/)

[Image](https://sms4smile.com/quotes/i/5be/kim-stanley-robinson-2148_education_teaching-was-the-most-rigorous-form-of-l_2714590.png)

> [He cannot be vertuous that is not rigorous.](https://sms4smile.com/quotes/george-herbert/he-cannot-be-vertuous-that-is-not-rigorous/)

[George Herbert](https://sms4smile.com/quotes/author/george-herbert/)

[Image](https://sms4smile.com/quotes/i/c70/george-herbert-107_greatness_he-cannot-be-vertuous-that-is-not-rigoro_239814.jpg)

> [I am very rigorous with myself.](https://sms4smile.com/quotes/brunello-cucinelli/i-am-very-rigorous-with-myself/)

[Brunello Cucinelli](https://sms4smile.com/quotes/author/brunello-cucinelli/)

[Image](https://sms4smile.com/quotes/i/b02/brunello-cucinelli-16224_am_i-am-very-rigorous-with-myself-221323_221323.jpg)

> [I would rather be right than rigorous.](https://sms4smile.com/quotes/stephen-hawking/i-would-rather-be-right-than-rigorous/)

[Stephen Hawking](https://sms4smile.com/quotes/author/stephen-hawking/)

[Image](https://sms4smile.com/quotes/i/165/stephen-hawking-389_mathematics_i-would-rather-be-right-than-rigorous-21_2169898.jpg)

> [What is the most rigorous law of our being? Growth.](https://sms4smile.com/quotes/mark-twain/what-is-the-most-rigorous-law-of-our-being-growth/)

[Mark Twain](https://sms4smile.com/quotes/author/mark-twain/)

[Image](https://sms4smile.com/quotes/i/c62/mark-twain-22_growth_what-is-the-most-rigorous-law-of-our-bei_1652805.png)

> [I've been a role model in terms of discipline, and I have always been rigorous and professional.](https://sms4smile.com/quotes/samuel-eto-o/i-ve-been-a-role-model-in-terms-of-discipline-and-i-have-always-been/)

[Samuel Eto'o](https://sms4smile.com/quotes/author/samuel-eto-o/)

[Image](https://sms4smile.com/quotes/i/4f2/samuel-eto-o-4867_always_i-ve-been-a-role-model-in-terms-of-disci_2821983.png)

> [If you look at the best schools that gets the best results, they teach a broad curriculum but they are also rigorous.](https://sms4smile.com/quotes/matt-hancock/if-you-look-at-the-best-schools-that-gets-the-best-results-they-teach/)

[Matt Hancock](https://sms4smile.com/quotes/author/matt-hancock/)

[Image](https://sms4smile.com/quotes/i/363/matt-hancock-20304_best_if-you-look-at-the-best-schools-that-get_908542.jpg)

> [Disasters can also be averted, which is why the rigorous approach after Ronan Point was the correct response.](https://sms4smile.com/quotes/dawn-foster/disasters-can-also-be-averted-which-is-why-the-rigorous-approach/)

[Dawn Foster](https://sms4smile.com/quotes/author/dawn-foster/)

[Image](https://sms4smile.com/quotes/i/d0a/dawn-foster-5956_also_disasters-can-also-be-averted-which-is-w_2666821.jpg)

> [Poetry is a form of mathematics, a highly rigorous relationship with words.](https://sms4smile.com/quotes/tahar-ben-jelloun/poetry-is-a-form-of-mathematics-a-highly-rigorous-relationship-with/)

[Tahar Ben Jelloun](https://sms4smile.com/quotes/author/tahar-ben-jelloun/)

[Image](https://sms4smile.com/quotes/i/afa/tahar-ben-jelloun-8798_mathematics_poetry-is-a-form-of-mathematics-a-highly_1447028.jpg)

> [“The most rigorous reading is to find what those words on that page mean in our own lives.”](https://sms4smile.com/quotes/kylene-beers/the-most-rigorous-reading-is-to-find-what-those-words-on-that-page/)

Kylene Beers

[Image](https://sms4smile.com/quotes/i/fde/kylene-beers-76784_language_the-most-rigorous-reading-is-to-find-wha_302799.jpg)

> [I don't like doing really rigorous exercise. I don't mind a bit of yoga.](https://sms4smile.com/quotes/georgia-toffolo/i-don-t-like-doing-really-rigorous-exercise-i-don-t-mind-a-bit-of-yoga/)

[Georgia Toffolo](https://sms4smile.com/quotes/author/georgia-toffolo/)

[Image](https://sms4smile.com/quotes/i/f39/georgia-toffolo-6162_doing_i-don-t-like-doing-really-rigorous-exerc_3196791.jpg)

> [Rigorous teaching schedules combined with mounds of paperwork can lead to burnout.](https://sms4smile.com/quotes/lourdes-garcia-navarro/rigorous-teaching-schedules-combined-with-mounds-of-paperwork-can/)

[Lourdes Garcia-Navarro](https://sms4smile.com/quotes/author/lourdes-garcia-navarro/)

[Image](https://sms4smile.com/quotes/i/43c/lourdes-garcia-navarro-38437_burnout_rigorous-teaching-schedules-combined-wit_1539362.jpg)

> [My music is very, very precise. It's very rigorous. The forms are much more intricate than you would imagine.](https://sms4smile.com/quotes/meredith-monk/my-music-is-very-very-precise-it-s-very-rigorous-the-forms-are-much/)

[Meredith Monk](https://sms4smile.com/quotes/author/meredith-monk/)

[Image](https://sms4smile.com/quotes/i/ef7/meredith-monk-29562_form_my-music-is-very-very-precise-it-s-very_1832811.jpg)

> [ Mel \[Bochner\] sets a very high standard. He expects only the best and most thoughtful and rigorous examinations, not only of the… ](https://sms4smile.com/quotes/kehinde-wiley/mel-bochner-sets-a-very-high-standard-he-expects-only-the-best-and/)

[Kehinde Wiley](https://sms4smile.com/quotes/author/kehinde-wiley/)

[Image](https://sms4smile.com/quotes/i/06b/kehinde-wiley-1194_art_mel-bochner-sets-a-very-high-standard-he_1509862.jpg)

> [At the time, my personal research objectives were to provide Keynesian economics with more rigorous foundations and to tighten and elaborate the…](https://sms4smile.com/quotes/james-tobin/at-the-time-my-personal-research-objectives-were-to-provide-keynesian/)

[James Tobin](https://sms4smile.com/quotes/author/james-tobin/)

[Image](https://sms4smile.com/quotes/i/180/james-tobin-35957_economics_at-the-time-my-personal-research-objecti_503971.jpg)

> [The learned should be vigorous and diligent, but they should also be free-spirited. If they are too rigorous and austere, they have…](https://sms4smile.com/quotes/zicheng-hong/the-learned-should-be-vigorous-and-diligent-but-they-should-also-be/)

[Zicheng Hong](https://sms4smile.com/quotes/author/zicheng-hong/)

[Image](https://sms4smile.com/quotes/i/3d5/zicheng-hong-7031_autumn_the-learned-should-be-vigorous-and-dilig_827241.jpg)

> [“It is clearly true that the reflex of disparagement is no more compatible with rigorous inquiry than the impulse to glorify.”](https://sms4smile.com/quotes/marilynne-robinson/it-is-clearly-true-that-the-reflex-of-disparagement-is-no-more/)

[Marilynne Robinson](https://sms4smile.com/quotes/author/marilynne-robinson/)

[Image](https://sms4smile.com/quotes/i/093/marilynne-robinson-602_rigorous_it-is-clearly-true-that-the-reflex-of-di_2396950.png)

> [I think there are different ways of being rigorous, and I am asking people to be as rigorous in their pleasure as…](https://sms4smile.com/quotes/barbara-kruger/i-think-there-are-different-ways-of-being-rigorous-and-i-am-asking/)

[Barbara Kruger](https://sms4smile.com/quotes/author/barbara-kruger/)

[Image](https://sms4smile.com/quotes/i/856/barbara-kruger-7415_asking_i-think-there-are-different-ways-of-bein_1457155.png)

> [Even in fiction, I feel rigorous honesty applies. It doesn't apply to facts; it applies to what I think of as not…](https://sms4smile.com/quotes/siri-hustvedt/even-in-fiction-i-feel-rigorous-honesty-applies-it-doesn-t-apply-to/)

[Siri Hustvedt](https://sms4smile.com/quotes/author/siri-hustvedt/)

[Image](https://sms4smile.com/quotes/i/b47/siri-hustvedt-860_applies_even-in-fiction-i-feel-rigorous-honesty_809629.jpg)

> [The completion of a rigorous course in mathematics - it is not even necessary that the student does well in such a…](https://sms4smile.com/quotes/keith-devlin/the-completion-of-a-rigorous-course-in-mathematics-it-is-not-even/)

[Keith Devlin](https://sms4smile.com/quotes/author/keith-devlin/)

[Image](https://sms4smile.com/quotes/i/04e/keith-devlin-19829_benefits_the-completion-of-a-rigorous-course-in-m_2719700.jpg)

> [The wire is a safe place for me to be. The street is not. Life is not. It's a rigorous and simple…](https://sms4smile.com/quotes/philippe-petit/the-wire-is-a-safe-place-for-me-to-be-the-street-is-not-life-is-not/)

[Philippe Petit](https://sms4smile.com/quotes/author/philippe-petit/)

[Image](https://sms4smile.com/quotes/i/fff/philippe-petit-3697_ground_the-wire-is-a-safe-place-for-me-to-be-th_1413226.jpg)

> [The modern mind tends to be more and more critical and analytical in spirit, hence it must devise for itself an engine…](https://sms4smile.com/quotes/edward-sapir/the-modern-mind-tends-to-be-more-and-more-critical-and-analytical-in/)

[Edward Sapir](https://sms4smile.com/quotes/author/edward-sapir/)

[Image](https://sms4smile.com/quotes/i/284/edward-sapir-15133_analytical_the-modern-mind-tends-to-be-more-and-mor_2496444.jpg)

> [Physical education for the body to be effective must be rigorous and detailed, far sighted and methodological. This will be translated into…](https://sms4smile.com/quotes/sri-aurobindo/physical-education-for-the-body-to-be-effective-must-be-rigorous-and/)

[Sri Aurobindo](https://sms4smile.com/quotes/author/sri-aurobindo/)

[Image](https://sms4smile.com/quotes/i/b45/sri-aurobindo-1257_body_physical-education-for-the-body-to-be-ef_2016382.png)

> [I engage in the use of game theory. Game theory is a branch of mathematics, and that means, sorry, that even in…](https://sms4smile.com/quotes/bruce-bueno-de-mesquita/i-engage-in-the-use-of-game-theory-game-theory-is-a-branch-of/)

[Bruce Bueno de Mesquita](https://sms4smile.com/quotes/author/bruce-bueno-de-mesquita/)

[Image](https://sms4smile.com/quotes/i/a1e/bruce-bueno-de-mesquita-31658_about_i-engage-in-the-use-of-game-theory-game_602920.jpg)

> [Yes, it will go through the disciplines that all puppies go through including house training and puppy walking, then at twelve month…](https://sms4smile.com/quotes/david-blunkett/yes-it-will-go-through-the-disciplines-that-all-puppies-go-through/)

[David Blunkett](https://sms4smile.com/quotes/author/david-blunkett/)

[Image](https://sms4smile.com/quotes/i/8bd/david-blunkett-4087_animal_yes-it-will-go-through-the-disciplines-t_284149.jpg)

> [“So at the K-12 level, we’ve got an educational system that in many fundamental ways hasn’t changed in 100 years – except,…](https://sms4smile.com/quotes/glenn-harlan-reynolds/so-at-the-k-12-level-we-ve-got-an-educational-system-that-in-many/)

Glenn Harlan Reynolds

[Image](https://sms4smile.com/quotes/i/01d/glenn-harlan-reynolds-67833_education_so-at-the-k-12-level-we-ve-got-an-educat_2438859.jpg)

> [“To be rigorous means consistently applying exacting standards at all times and at all levels, especially in upper management. To be rigorous,…](https://sms4smile.com/quotes/james-c-collins/to-be-rigorous-means-consistently-applying-exacting-standards-at-all/)

[James C. Collins](https://sms4smile.com/quotes/author/james-c-collins/)

[Image](https://sms4smile.com/quotes/i/deb/james-c-collins-2276_management_to-be-rigorous-means-consistently-applyi_2768991.png)

> [Mathematics is of two kinds, Rigorous and Physical. The former is Narrow: the latter Bold and Broad. To have to stop to…](https://sms4smile.com/quotes/oliver-heaviside/mathematics-is-of-two-kinds-rigorous-and-physical-the-former-is/)

[Oliver Heaviside](https://sms4smile.com/quotes/author/oliver-heaviside/)

[Image](https://sms4smile.com/quotes/i/ecb/oliver-heaviside-26165_broads_mathematics-is-of-two-kinds-rigorous-and_102615.jpg)

> [Depending on where I am in the process, sometimes I have a page count and sometimes I don't. Sometimes I have an…](https://sms4smile.com/quotes/alice-sebold/depending-on-where-i-am-in-the-process-sometimes-i-have-a-page-count/)

[Alice Sebold](https://sms4smile.com/quotes/author/alice-sebold/)

[Image](https://sms4smile.com/quotes/i/508/alice-sebold-999_am_depending-on-where-i-am-in-the-process-s_1669625.jpg)

> [“The surgical resident interested in learning trauma will bypass a residency at a quiet community hospital for a residency at a fast-paced…](https://sms4smile.com/quotes/marian-deegan/the-surgical-resident-interested-in-learning-trauma-will-bypass-a/)

[Marian Deegan](https://sms4smile.com/quotes/author/marian-deegan/)

[Image](https://sms4smile.com/quotes/i/7c5/marian-deegan-57907_action_the-surgical-resident-interested-in-lear_251664.jpg)

> [Science isn't done by consensus. It's done by rigorous testing.](https://sms4smile.com/quotes/orson-scott-card/science-isn-t-done-by-consensus-it-s-done-by-rigorous-testing/)

[Orson Scott Card](https://sms4smile.com/quotes/author/orson-scott-card/)

[Image](https://sms4smile.com/quotes/i/ac1/orson-scott-card-134_consensus_science-isn-t-done-by-consensus-it-s-don_990920.png)

> [“the system is not designed to generate the most rigorous standards. Only”](https://sms4smile.com/quotes/ted-koppel/the-system-is-not-designed-to-generate-the-most-rigorous-standards/)

[Ted Koppel](https://sms4smile.com/quotes/author/ted-koppel/)

[Image](https://sms4smile.com/quotes/i/0aa/ted-koppel-3111_designed_the-system-is-not-designed-to-generate-t_3029852.png)

> [The Common Core State Standards are more rigorous standards than the great majority of states had in place previously.](https://sms4smile.com/quotes/jeb-bush/the-common-core-state-standards-are-more-rigorous-standards-than-the/)

[Jeb Bush](https://sms4smile.com/quotes/author/jeb-bush/)

[Image](https://sms4smile.com/quotes/i/768/jeb-bush-1082_common_the-common-core-state-standards-are-more_929931.png)

> [Be rigorous about your HR decisions. There is a difference between rigorous and ruthless.](https://sms4smile.com/quotes/james-c-collins/be-rigorous-about-your-hr-decisions-there-is-a-difference-between/)

[James C. Collins](https://sms4smile.com/quotes/author/james-c-collins/)

[Image](https://sms4smile.com/quotes/i/66e/james-c-collins-2276_decision_be-rigorous-about-your-hr-decisions-ther_1713713.png)

> [“He measured himself and those around him by an impossibly rigorous moral code.”](https://sms4smile.com/quotes/carine-mccandless/he-measured-himself-and-those-around-him-by-an-impossibly-rigorous/)

Carine McCandless

[Image](https://sms4smile.com/quotes/i/ad7/carine-mccandless-65751_moral-code_he-measured-himself-and-those-around-him_2521746.jpg)

> [Your attitude is perhaps a little unnecessarily rigorous," suggested Jack.](https://sms4smile.com/quotes/robin-mckinley/your-attitude-is-perhaps-a-little-unnecessarily-rigorous-suggested/)

[Robin McKinley](https://sms4smile.com/quotes/author/robin-mckinley/)

[Image](https://sms4smile.com/quotes/i/22d/robin-mckinley-1591_attitude_your-attitude-is-perhaps-a-little-unnece_1538656.png)

> [Accountability and democratic choice, I deeply believe, are guaranteed by rigorous scrutiny only.](https://sms4smile.com/quotes/jemima-khan/accountability-and-democratic-choice-i-deeply-believe-are-guaranteed/)

[Jemima Khan](https://sms4smile.com/quotes/author/jemima-khan/)

[Image](https://sms4smile.com/quotes/i/055/jemima-khan-34634_accountability_accountability-and-democratic-choice-i-d_2718804.png)

> [We should be rigorous in judging ourselves and gracious in judging others.](https://sms4smile.com/quotes/john-wesley/we-should-be-rigorous-in-judging-ourselves-and-gracious-in-judging/)

[John Wesley](https://sms4smile.com/quotes/author/john-wesley/)

[Image](https://sms4smile.com/quotes/i/867/john-wesley-1398_gracious_we-should-be-rigorous-in-judging-ourselv_3068622.jpg)

> [We will also have a more rigorous approach to professional development and managing unsatisfactory performance.](https://sms4smile.com/quotes/jay-weatherill/we-will-also-have-a-more-rigorous-approach-to-professional/)

[Jay Weatherill](https://sms4smile.com/quotes/author/jay-weatherill/)

[Image](https://sms4smile.com/quotes/i/940/jay-weatherill-16499_also_we-will-also-have-a-more-rigorous-approa_475962.png)

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                        "text": "The completion of a rigorous course in mathematics - it is not even necessary that the student does well in such a course - appears to be an excellent means of sharpening the mind and developing mental skills that are of general benefit.",
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                        "text": "The wire is a safe place for me to be. The street is not. Life is not. It's a rigorous and simple path. It's straight. You don't have meanders like, you know, on the ground, in life.",
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                        "text": "Mathematics is of two kinds, Rigorous and Physical. The former is Narrow: the latter Bold and Broad. To have to stop to formulate rigorous demonstrations would put a stop to most physico-mathematical inquiries. Am I to refuse to eat because I do not fully understand the mechanism of digestion?",
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