Freedom means the opportunity to be what we never thought we would be.

No agnostic ever burned anyone at the stake or tortured a pagan, a heretic, or an unbeliever.

A wonderful thing about a book, in contrast to a computer screen, is that you can take it to bed with you.

There is no disinfectant like success.

What is more natural in a democratic age than that we should begin to measure the stature of a work of art-especially of a painting-by how widely and how well it is reproduced?

Knowledge is not simply another commodity. On the contrary. Knowledge is never used up. It increases by diffusion and grows by dispersion.

destruction is easy for humans but creation is too difficult.