A businessman is a hybrid of a dancer and a calculator.

God created man and, finding him not sufficiently alone, gave him a companion to make him feel his solitude more keenly.

Growing nations should remember that, in nature, no tree, though placed in the best conditions of light, soil, and plot, can continue to grow and spread indefinitely.

Liberty is the hardest test that one can inflict on a people. To know how to be free is not given equally to all men and all nations.

The purpose of psychology is to give us a completely different idea of the things we know best.

Everything changes but the avant-garde.

The universe is built on a plan the profound symmetry of which is somehow present in the inner structure of our intellect.