One of the main weaknesses of mankind is the average man's familiarity with the word 'impossible'.

Practice does not make perfect. Perfect practice makes perfect.

A man paints with his brains and not with his hands.

Any fact facing us is not as important as our attitude toward it, for that determines our success or failure

By failing to prepare, you are preparing to fail.

Tell the audience what you're going to say, say it; then tell them what you've said.

I'm a slow walker, but I never walk back.

Don't ever promise more than you can deliver, but always deliver more than you promise.

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.

Do one thing at a time, and while doing it put your whole soul into it to the exclusion of all else.

We struggle with the complexities and avoid the simplicities.

In every job that must be done, there is an element of fun. You find the fun and - SNAP - the job's a game!

Success is the doing, not the getting; in the trying, not the triumph. Success is a personal standard, reaching for the highest that is in us, becoming all that we can be. If we do our best, we are a success.

One must be sane to think clearly, but one can think deeply and be quite insane.

Success comes to those who become success conscious. Failure comes to those who indifferently allow themselves to become failure conscious.

Ability may get you to the top, but it takes character to keep you there.

A creative man is motivated by the desire to achieve, not by the desire to beat others.

I have not failed. I've just found 10,000 ways that won't work.

If youre in the luckiest one per cent of humanity, you owe it to the rest of humanity to think about the other 99 per cent.

The leader of genius must have the ability to make different opponents appear as if they belonged to one category.

No man can taste the fruits of autumn while he is delighting his scent with the flowers of spring.