I am a deeply religious nonbeliever - this is a somewhat new kind of religion.

The woman who follows the crowd will usually go no further than the crowd. The woman who walks alone is likely to find herself in places no one has ever been before.

Our defense is not in our armaments, nor in science, nor in going underground. Our defense is in law and order.

A conflict arises when a religious community insists on the absolute truthfulness of all statements recorded in the Bible. This means an intervention on the part of religion into the sphere of science; this is where the struggle of the Church against doctrines of Galileo and Darwin belongs.

Success comes from curiosity, concentration, perseverance and self criticism.

I'm not a genius. I'm just passionately curious.

The theoretical idea ... does not arise apart from and independent of experience; nor can it be derived from experience by a purely logical procedure. It is produced by a creative act. Once a theoretical idea has been acquired, one does well to hold fast to it until it leads to an untenable conclusion.