Science never gives up searching for truth, since it never claims to have achieved it.

Science exists, moreover, only as a journey toward troth. Stifle dissent and you end that journey.

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

[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.

When, as we must often do, we fear science, we really fear ourselves. Human dignity is better served by embracing knowledge.

It is folly to use as one's guide in the selection of fundamental science the criterion of utility. Not because (scientists)... despise utility. But because. .. useful outcomes are best identified after the making of discoveries, rather than before.

Science never gives up searching for truth, since it never claims to have achieved it.