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.

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.

Today, Academies of Science use their influence around the world in support of human rights.

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

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.

For science must breathe the oxygen of freedom.