Those who cannot remember the past are condemned to repeat it.

Those who speak most of progress measure it by quantity and not by quality.

A country without a memory is a country of madmen.

When all beliefs are challenged together, the just and necessary ones have a chance to step forward and re-establish themselves alone.

A buoyant and full-blooded soul has quick senses and miscellaneous sympathies: it changes with the changing world; and when not too much starved or thwarted by circumstances, it finds all things vivid and comic. Life is free play fundamentally and would like to be free play altogether.

The world is a perpetual caricature of itself; at every moment it is the mockery and the contradiction of what it is pretending to be.

America is the greatest of opportunities and the worst of influences.