Education which is not modern share the fate of all organic things which are kept too long.

After you understand about the sun and the stars and the rotation of the earth, you may still miss the radiance of the sunset.

The world is shocked, or amused, by the sight of saintly old people hindering in the name of morality the removal of obvious brutalities from a legal system.

The importance of an individual thinker owes something to chance. For it depends upon the fate of his ideas in the minds of his successors.

But you can catch yourself entertaining habitually certain ideas and setting others aside; and that, I think, is where our personal destinies are largely decided.

Nature is probably quite indifferent to the aesthetic preferences of mathematicians.

Knowledge is always accompanied with accessories of emotion and purpose.