Idealism is the highest form of reason.

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

The eye searches for shapes. It searches for a beginning, a middle, and an end.

Some dreamers demand that scientists only discover things that can be used for good.

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

Authority in science exists to be questioned, since heresy is the spring from which new ideas flow.

[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.