There is nothing new under the sun but there are lots of old things we don’t know.
- Ambrose Bierce (1842 – 1914), The Devil’s Dictionary

Insanity: doing the same thing over and over again and expecting different results.
- Albert Einstein (1879 – 1955)

Before you contradict an old man, my fair friend, you should endeavor to understand him.
- George Santayana (1863 – 1952)

One needs to be slow to form convictions, but once formed they must be defended against the heaviest odds.
- Mahatma Gandhi (1869 – 1948)

To do anything in this world worth doing, we must not stand back shivering and thinking of the cold and danger, but jump in, and scramble through as well as we can.
- Sydney Smith (1771 – 1845)