---
title: "1 Trouble Know Quotes By Gerald M. Weinberg"
description: "1 Trouble Know quotes by Gerald M. Weinberg. Plus more from Gerald M. Weinberg and more Trouble Know sayings from other authors."
image: "https://sms4smile.com/quotes/i/bbb/gerald-m-weinberg-23378_know_it-isn-t-what-we-don-t-know-that-gives-u_3050496.jpg"
---

> [“It isn't what we don't know that gives us trouble, it's what we know that ain't so. - Will Rogers The”](https://sms4smile.com/quotes/gerald-m-weinberg/it-isn-t-what-we-don-t-know-that-gives-us-trouble-it-s-what-we-know-2/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

[Image](https://sms4smile.com/quotes/i/bbb/gerald-m-weinberg-23378_know_it-isn-t-what-we-don-t-know-that-gives-u_3050496.jpg)

## More by Gerald M. Weinberg

> [“Much of the ability to help other people arises from personal power, but it would be naive to assert that nothing else is required.…](https://sms4smile.com/quotes/gerald-m-weinberg/much-of-the-ability-to-help-other-people-arises-from-personal-power/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“What you don't know may not hurt you, but what you don't remember always does.”](https://sms4smile.com/quotes/gerald-m-weinberg/what-you-don-t-know-may-not-hurt-you-but-what-you-don-t-remember/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“If you are a leader, the people are your work. There is no other work worth doing.\* One”](https://sms4smile.com/quotes/gerald-m-weinberg/if-you-are-a-leader-the-people-are-your-work-there-is-no-other-work/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“Separation of function is not to be despised, but neither should it be exalted. Separation is not an unbreakable law, but a convenience for…](https://sms4smile.com/quotes/gerald-m-weinberg/separation-of-function-is-not-to-be-despised-but-neither-should-it-be/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“Often when managers say, "Testing takes too long," what they should be saying is, "Fixing the bugs in the product takes too long"—a different…](https://sms4smile.com/quotes/gerald-m-weinberg/often-when-managers-say-testing-takes-too-long-what-they-should-be/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“Although technology often leads science in discovery, the philosophy of technology is usually drawn from the scientific philosophy of its time. In our time,…](https://sms4smile.com/quotes/gerald-m-weinberg/although-technology-often-leads-science-in-discovery-the-philosophy/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“Why is it that we reward programmers who work all night to remove the errors they put into their programs, or managers who make…](https://sms4smile.com/quotes/gerald-m-weinberg/why-is-it-that-we-reward-programmers-who-work-all-night-to-remove-the/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“Or, suppose you want to motivate your managers to ship products on time, so you conspicuously promote each manager whose product goes out the…](https://sms4smile.com/quotes/gerald-m-weinberg/or-suppose-you-want-to-motivate-your-managers-to-ship-products-on/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“If you don't have questions about a product's risks, then there's no reason to test. If you have at least one such question, then…](https://sms4smile.com/quotes/gerald-m-weinberg/if-you-don-t-have-questions-about-a-product-s-risks-then-there-s-no/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“Within IBM at that time, growing a beard without getting fired was an indisputable mark of technical genius. In”](https://sms4smile.com/quotes/gerald-m-weinberg/within-ibm-at-that-time-growing-a-beard-without-getting-fired-was-an/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“There's never an easy answer to the question "Should we do more testing?" because information can guide risk reduction, but doesn't necessarily do so.”](https://sms4smile.com/quotes/gerald-m-weinberg/there-s-never-an-easy-answer-to-the-question-should-we-do-more/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“Testing may convincingly demonstrate the presence of bugs, but can never demonstrate their absence."- Edsger W. Dijkstra, Computing Pioneer (1930–2002), "Programming as a discipline…](https://sms4smile.com/quotes/gerald-m-weinberg/testing-may-convincingly-demonstrate-the-presence-of-bugs-but-can/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“Linear models tend to define relationships in terms of roles rather than people: the boss rather than the person actually exerting influence. The organic…](https://sms4smile.com/quotes/gerald-m-weinberg/linear-models-tend-to-define-relationships-in-terms-of-roles-rather/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“\*Effective help can only start with mutual agreement on a clear definition of the problem.\* Interestingly”](https://sms4smile.com/quotes/gerald-m-weinberg/effective-help-can-only-start-with-mutual-agreement-on-a-clear/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

> [“problem-solving leaders have one thing in common: a faith that there's always a better way.”](https://sms4smile.com/quotes/gerald-m-weinberg/problem-solving-leaders-have-one-thing-in-common-a-faith-that-there-s/)

[Gerald M. Weinberg](https://sms4smile.com/quotes/author/gerald-m-weinberg/)

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