I would maintain that thanks are the highest form of thought, and that gratitude is happiness doubled by wonder.

Most people are about as happy as they make up their minds to be

A very great vision is needed, and the man who has it must follow it.

Accept challenges, so that you may feel the exhilaration of victory

Count your age by friends, not years.

The world is given to me only once, not one existing and one perceived.

One fails forward toward success.