All are lunatics, but he who can analyze his delusion is called a philosopher. (Ambrose Bierce)

Only two things are infinite, the universe and human stupidity, and I’m not sure about the former. (Albert Einstein)

It’s kind of fun to do the impossible. (Walt Disney)

The fundamental cause of trouble in the world is that the stupid are cocksure while the intelligent are full of doubt. (Bertrand Russell)

If a man does his best, what else is there? (General George S. Patton)

In theory, there is no difference between theory and practice. But in practice, there is. (Yogi Berra)