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.

Your most unhappy customers are your greatest source of learning.

It is amazing how much can be accomplished if no one cares who gets the credit.

For it is commonly said: accomplished labours are pleasant.

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

Change yourself and your work will seem different.

A person who never made a mistake never tried anything new.

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

Art calls for complete mastery of techniques, developed by reflection within the soul.

You've got to be very careful if you don't know where you're going, because you might not get there.

Eighty percent of success is showing up.

No man ever achieved worthwhile success who did not, at one time or other, find himself with at least one foot hanging well over the brink of failure.

If A is success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut.

Boredom is one of the most blissful feelings.

The secret of success is constancy to purpose.

It's a terrible thing to look over your shoulder when you are trying to lead - and find no one there

There is one weakness in people for which there is no remedy. It is the universal weakness of lack of ambition.

Whenever you are asked if you can do a job, tell 'em, 'Certainly I can!' Then get busy and find out how to do it.

If you do not change direction, you may end up where you are heading.

With any part you play, there is a certain amount of yourself in it. There has to be, otherwise it's just not acting. It's lying.

A company is only as good as the people it keeps.