Chop your own wood and it will warm you twice
Deadlines just aren't real to me until I'm staring one in the face.
One can have no smaller or greater mastery than mastery of oneself.
The world does not pay men for that which they 'know'. It pays them for what they do, or induce others to do.
It is easier for a tutor to command than to teach.
To be clever enough to get all that money, one must be stupid enough to want it.
For the bureaucrat, the world is a mere object to be manipulated by him.
He who will not economize will have to agonize.
Effective communication is 20% what you know and 80% how you feel about what you know.
It is a cursed evil to any man to become as absorbed in any subject as I am in mine
Be quick, but don't hurry.
You can't just ask customers what they want and then try to give that to them. By the time you get it built, they'll want something new.
One must be sane to think clearly, but one can think deeply and be quite insane.
Most people spend more time and energy going around problems than in trying to solve them.
Price is what you pay. Value is what you get.
Let others lead small lives, but not you. Let others argue over small things, but not you. Let others cry over small hurts, but not you. Let others leave their future in someone else's hands, but not you.
You never achieve success unless you like what you are doing.
Please all, and you will please none.
The greatest leader is not necessarily the one who does the greatest things. He is the one that gets the people to do the greatest things.
Obstacles are those frightful things you see when you take your eyes off your goals.
Of all the things I've done, the most vital is coordinating those who work with me and aiming their efforts at a certain goal