One word characterizes the most strenuous of the efforts for the advancement of science that I have made perservereingly during fifty-five years; that word is failure

A great man's greatest good luck is to die at the right time.

The conservatism of a religion - it's orthodoxy - is the inert coagulum of a once highly reactive sap.

All mass movements avail themselves of action as a means of unification. The conflicts a mass movement seeks and incites serve not only to down its enemies but also to strip its followers of their distinct individuality and render them more soluble in the collective medium.

A dissenting minority feels free only when it can impose its will on the majority: what it abominates most is the dissent of the majority.

Thought is a process of exaggeration. The refusal to exaggerate is not infrequently an alibi for the disinclination to think or praise.

A man by himself is in bad company.