People refuse to take chances in business, because they fear the criticism which may follow if they fail.

Success is a lousy teacher. It seduces smart people into thinking they can't lose.

There is nothing more difficult to carry out, nor more doubtful of success, nor more dangerous to handle, that to institute a new order of things

When you know what you want, and want it bad enough, you will find a way to get it.

He who will not economize will have to agonize.

Riches do not respond to wishes. They respond only to definite plans, backed by definite desires, through constant persistence.

The day science begins to study non-physical phenomena, it will make more progress in one decade than in all the previous centuries of its existence.

I am easily satisfied with the very best.

Without a sense of urgency, desire loses its value.

Without a humble but reasonable confidence in your own powers you cannot be successful or happy.

You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself. That is something you have charge of.

It is no use saying 'we are doing our best.' You have got to succeed in doing what is necessary.

Only put off until tomorrow what you are willing to die having left undone

The superior man understands what is right; the inferior man understands what will sell.

Our fatigue is often caused not by work, but by worry, frustration and resentment

When you play, play hard; when you work, don't play at all.

Moving from chair to chair, from coffee machine to coffee machine is the limit of my action in most films. But I enjoy being cast in them because I love watching them.

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

One can have no smaller or greater mastery than mastery of oneself.

The production of too many useful things results in too many useless people.

At least with me, the match starts much, much earlier than the actual match.