Without a humble but reasonable confidence in your own powers you cannot be successful or happy.
Why, look at me. I've worked my way up from nothing to a state of extreme poverty.
Don't mistake activity with achievement.
I don't want to achieve immortality through my work... I want to achieve it through not dying.
If we all did the things we are really capable of doing, we would literally astound ourselves
The role of the artist is to ask questions, not answer them.
Lisa, if you don't like your job you don't strike. You just go in every day and do it really half-assed. That's the American way.
You never achieve success unless you like what you are doing.
The successful leader must plan his work and work his plan.
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.
It is the set of the sails, not the direction of the wind that determines which way we will go.
Anticipate the difficult by managing the easy
One must be sane to think clearly, but one can think deeply and be quite insane.
The whole secret of a successful life is to find out what is one's destiny to do, and then do it.
If you don't have time to do it right, when will you have the time to do it over?
If you are the master be sometimes blind, if you are the servant be sometimes deaf.
Don't spend time beating on a wall, hoping to transform it into a door.
Old Professors never die, they just lose their faculties.
Dad, you've done a lot of great things, but you're a very old man, and old people are useless.
When you play, play hard; when you work, don't play at all.
Without work, all life goes rotten, but when work is soulless, life stifles and dies.