A best-seller was a book which somehow sold well because it was selling well.

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?

Books are messengers of freedom. They can be hidden under a mattress or smuggled into slave nations.

While knowledge is orderly and cumulative, information is random and miscellaneous.

Any government which made the welfare of men depend on the character of their governors was an illusion.

The courage to imagine the otherwise is our greatest resource, adding color and suspense to all our life.

The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge.