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

If you think your teacher is tough, wait until you get a boss. He doesn't have tenure.

To be clever enough to get all that money, one must be stupid enough to want it.

Whether it's Google or Apple or free software, we've got some fantastic competitors and it keeps us on our toes.

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

To those whom much is given, much is expected.

I am thankful to all those who said NO to me. It's because of them I did it myself.

Success is liking yourself, liking what you do, and liking how you do it.

Formulate and stamp indelibly on your mind a mental picture of yourself as succeeding. Hold this picture tenaciously and never permit it to fade. Your mind will seek to develop this picture!

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

We don't know a millionth of one percent about anything.

I do not like to repeat successes, I like to go on to other things.

If you treat people right they will treat you right - ninety percent of the time.

Always bear in mind that your own resolution to succeed is more important than any other.

A great secret of success is to go through life as a man who never gets used up.

If you aim at nothing, you will hit it every time.

The only 'break' anyone can afford to rely upon is a self-made 'break'.

Effective communication is 20% what you know and 80% how you feel about what you know.

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.

Dad, you've done a lot of great things, but you're a very old man, and old people are useless.

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