Wealth, religion, military victory have more rhetorical than efficacious worth.

We must welcome the future, remembering that soon it will be the past and we must respect the past, remembering that it was once all that was humanly possible.

I believe in general in a dualism between facts and the ideas of those facts in human heads.

Society is like the air, necessary to breathe but insufficient to live on.

The dreamer can know no truth, not even about his dream, except by awaking out of it.