"People that are orthodox when they are young are in danger of being middle-aged all their lives." — Walter Lippmann

The study of error is not only in the highest degree prophylactic, but it serves as a stimulating introduction to the study of truth.

Success makes men rigid and they tend to exalt stability over all the other virtues; tired of the effort of willing they become fanatics about conservatism.

In a free society the state does not administer the affairs of men. It administers justice among men who conduct their own affairs.

The time has come to stop beating our heads against stone walls under the illusion that we have been appointed policeman to the human race.