Sincerity is not a test of truth. We must not make this mistake: He must be right; he's so sincere. Because, it is possible to be sincerely wrong. We can only judge truth by truth and sincerity by sincerity.

When you work, work. When you play, play. Don't mix the two.

It's important to learn from your mistakes, but it is BETTER to learn from other people's mistakes, and it is BEST to learn from other people's successes. It accelerates your own success.

There is no greater leadership challenge than parenting.

The biggest reason people don't succeed is because they don't expose themselves to existing information.

The best advice I ever came across on the subject of concentration is: Wherever you are, be there.

The most important question to ask is "What am I becoming?"