Personally, I enjoy working about 18 hours a day. Besides the short catnaps I take each day, I average about four to five hours of sleep per night.

Do your best at every job. Don't sleep! Success generates more success so be hungry for it. Hire good people with a passion for excellence.

Remember that only God can judge us; forget the haters, because Somebody loves you.

There is plenty of time to sleep in the grave.

If you're doing anything interesting in the world, you are going to have critics. You can't stop it. Move forward. It's not worth losing any sleep over.

Arise! Awake! and stop not until the goal is reached.