Each morning when I open my eyes I say to myself: I, not events, have the power to make me happy or unhappy today. I can choose which it shall be. Yesterday is dead, tomorrow hasn't arrived yet. I have just one day, today, and I'm going to be happy in it.

- Groucho Marx

I have had dreams and I have had nightmares, but I have conquered my nightmares because of my dreams.

- Jonas Salk