At the heart of science lies discovery which involves a change in worldview. Discovery in science is possible only in societies which accord their citizens the freedom to pursue the truth where it may lead and which therefore have respect for different paths to that truth.

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

In nation after nation, democracy has taken the place of autocracy.

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

Nothing is more irredeemably irrelevant than bad science.

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

Though we explore in a culturally-conditioned way, the reality we sketch is universal.