“It is surprising what a man can do when he has to, and how little most men will do when they don't have to.”

Never do things others can do and will do, if there are things others cannot do or will not do.

Be miserable. Or motivate yourself. Whatever has to be done, it's always your choice.

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

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

There is never enough time to do everything, but there is always enough time to do the most important thing.

You have to fight to reach your dream. You have to sacrifice and work hard for it.

Do something wonderful, people may imitate it.