Some are born great; some achieve greatness; and some have greatness thrust upon them.
The danger of the past was that men became slaves. The danger of the future is that men may become robots.
Just as philosophy is the study of other people's misconceptions, so history is the study of other people's mistakes.
Enemies publish themselves. They declare war. The friend never has to declare his love.
Greatness lies not in being strong, but in the right use of strength.
Times are not as bad as they seem -- they couldn't be.
There is no such thing as the pursuit of happiness, but there is the discovery of joy.
When one begins to live by habit and by quotation, one has begun to stop living.
Next to ingratitude, the most painful thing is gratitude.
If you want to live, you must walk. If you want to live long, you must run.