We are enriched by our reciprocate differences.

Great things are accomplished by those who do not feel the impotence of man. This is a precious gift.

Whoever wants to accomplish great things must devote to a lot of profound thought to details.

Thanks to photography, the eye grew accustomed to anticipate what it should see and to see it; and it learned not to see nonexistent things which, hitherto, it had seen so clearly.

History justifies whatever we want it to. It teaches absolutely nothing, for it contains everything and gives examples of everything.

The future, like everything else, is no longer quite what it used to be.

The mind has transformed the world, and the world is repaying it with interest. It has led man where he had no idea how to go.