Try not to become a man of success but rather try to become a man of value.

Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

Success is not final, failure is not fatal: it is the courage to continue that counts.

Per aspera ad astra.

Success is often achieved by those who don’t know that failure is inevitable.

Formal education will make you a living. Self-education will make you a fortune.

— Mr. Churchill, to what do you attribute your success in life?
— Conservation of energy. Never stand up when you can sit down. And never sit down when you can lie down.

I don't know all the keys to success, but one key to failure is to try to please everyone.

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