Speak softly and carry a big stick; you will go far.
Dad, you've done a lot of great things, but you're a very old man, and old people are useless.
Good things happen to those who hustle.
Old Professors never die, they just lose their faculties.
There is nothing impossible to him who will try.
You may have to fight a battle more than once to win it.
From each according to his abilities, to each according to his needs.
Without a humble but reasonable confidence in your own powers you cannot be successful or happy.
Don't ever promise more than you can deliver, but always deliver more than you promise.
Once you start a working on something, don't be afraid of failure and don't abandon it. People who work sincerely are the happiest.
It is the set of the sails, not the direction of the wind that determines which way we will go.
The only 'break' anyone can afford to rely upon is a self-made 'break'.
Sell a man a fish, he eats for a day, teach a man how to fish, you ruin a wonderful business opportunity.
I'm not the smartest fellow in the world, but I can sure pick smart colleagues.
Eighty percent of success is showing up.
Success is not to be pursued; it is to be attracted by the person you become
Because ideas have to be original only with regard to their adaptation to the problem at hand, I am always extremely interested in how others have used them...
I believe that anyone can conquer fear by doing the things he fears to do, provided he keeps doing them until he gets a record of successful experiences behind him.
Either you run the day or the day runs you.
Percentages are why I am rich.
Deadlines just aren't real to me until I'm staring one in the face.