Reality is no less precious if it presents itself to someone else. All are discoverers, and if we disenfranchise any, all suffer.

For science must breathe the oxygen of freedom.

Science is a collection of stories, linking characters worthy of notice.

In education the appetite does indeed grow with eating. I have never known anyone to abandon study because they knew too much.

The applause is a celebration not only of the actors but also of the audience. It constitutes a shared moment of delight.

[Intellectual courage is] the quality that allows one to believe in one's judgement in the face of disappointment and widespread skepticism. Intellectual courage is even rarer than physical courage.

Individual scientists like myself - and many more conspicuous - pointed to the dangers of radioactive fallout over Canada if we were to launch nuclear weapons to intercept incoming bombers.