Believe you can and you're halfway there.

Life is 10% what happens to you and 90% how you react to it.

You can't expect to hit the jackpot if you don't put a few nickels in the machine.

If you fell down yesterday, stand up today.

Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment.

Start where you are. Use what you have. Do what you can.

Having knowledge but lacking the power to express it clearly is no better than never having any ideas at all.

The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.

It always seems impossible until it's done.

It takes considerable knowledge just to realize the extent of your own ignorance.