One of the main weaknesses of mankind is the average man's familiarity with the word 'impossible'.
There is but one dependable method of accumulating and legally holding riches, and that is by rendering useful service.
Only put off until tomorrow what you are willing to die having left undone
Good things happen to those who hustle.
Without work, all life goes rotten, but when work is soulless, life stifles and dies.
If you think your teacher is tough, wait until you get a boss. He doesn't have tenure.
Chop your own wood and it will warm you twice
I do know that when I am 60, I should be attempting to achieve different personal goals than those which had priority at age 20.
Fake it until you make it.
Genius is eternal patience.
Dad, you've done a lot of great things, but you're a very old man, and old people are useless.
It is no use saying 'we are doing our best.' You have got to succeed in doing what is necessary.
Your most unhappy customers are your greatest source of learning.
If you can't make it good, at least make it look good.
A man paints with his brains and not with his hands.
God sells us all things at the price of labor.
If I had eight hours to chop down a tree, I'd spend six hours sharpening my axe.
You reach a point where you don't work for money.
Work does not kill a man, it is worry, irregularity and uncertainty that kill.
Obstacles are those frightful things you see when you take your eyes off your goals.
If you try to be anyone but yourself, you will fail; if you are not true to your own heart, you will fail. Then again, there's no success like failure