A wise man can learn more from a foolish question than a fool can learn from a wise answer.

We should regret our mistakes and learn from them, but never carry them forward into the future with us.

Consistency is the last refuge of the unimaginative.

I am always doing that which I cannot do, in order that I may learn how to do it.

Good, better, best. Never let it rest. 'Til your good is better and your better is best.

Better keep yourself clean and bright; you are the window through which you must see the world.

It always seems impossible until it's done.

Your mind will answer most questions if you learn to relax and wait for the answer.

If you're going through hell, keep going.

Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.