Nothing is more irredeemably irrelevant than bad science.

Instead, in the absence of respect for human rights, science and its offspring technology have been used in this century as brutal instruments for oppression.

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

Even in the world of molecules the civilising influence of modest restraints is a cause for rejoicing.

Science is an enterprise that can only flourish if it puts the truth ahead of nationality, ethnicity, class and color.

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

[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.