"To be well-informed is to have a great deal of information. To be wise is to have a great deal of information and to know what to do with it."

"Man is an animal that makes bargains; no other animal does this - no dog exchanges bones with another."

"The surest way to work up a crusade in favor of some good cause is to find a bad name for its opponents."

"The people who are most sure about everything are the least likely to know anything."

"To be able to see things as they are, without illusion, is a rare and precious gift."