---
title: "1 Ideas Mind Quotes By Maurice Duffy"
description: "1 Ideas Mind quotes by Maurice Duffy. Plus more from Maurice Duffy and more Ideas Mind sayings from other authors."
image: "https://sms4smile.com/quotes/i/32a/maurice-duffy-76897_innovation_the-test-of-a-first-rate-intelligence-is_526540.jpg"
---

> [“The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time.”](https://sms4smile.com/quotes/maurice-duffy/the-test-of-a-first-rate-intelligence-is-the-ability-to-hold-two-3/)

Maurice Duffy

[Image](https://sms4smile.com/quotes/i/32a/maurice-duffy-76897_innovation_the-test-of-a-first-rate-intelligence-is_526540.jpg)

## More by Maurice Duffy

> [“The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time.”](https://sms4smile.com/quotes/maurice-duffy/the-test-of-a-first-rate-intelligence-is-the-ability-to-hold-two-3/)

Maurice Duffy

> [“A poor attitude does not do the body any favours. Smile and the world will smile back at you.”](https://sms4smile.com/quotes/maurice-duffy/a-poor-attitude-does-not-do-the-body-any-favours-smile-and-the-world/)

Maurice Duffy

> [“New beginnings can be painful ends. What your attitude is changes ends into new beginnings.”](https://sms4smile.com/quotes/maurice-duffy/new-beginnings-can-be-painful-ends-what-your-attitude-is-changes-ends/)

Maurice Duffy

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