What we agree with leaves us inactive, but contradiction makes us productive.

Gray are all the theories, But green is the tree of life.

Men show their character in nothing more clearly than what they think laughable.

To like things like, whatever one may ail; There is certain help.

The dear good people don't know how long it takes to learn to read. I've been at it eighty years, and can't say yet that I've reached the goal.

Enthusiasm is of the greatest value, so long as we are not carried away by it.

If one doesn't know one's own country, one doesn't have standards for foreign countries.