Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence.
It stands to the everlasting credit of science that by acting on the human mind it has overcome man's insecurity before himself and before nature.
It is better to believe than to disbelieve; in doing you bring everything to the realm of possibility.
I'd rather be an optimist and a fool than a pessimist and right.
The Revolution introduced me to art, and in turn, art introduced me to the Revolution!
Nationalism is an infantile thing. It is the measles of mankind.