People are the key to success or extraordinary success.

The key to success is action, and the essential in action is perseverance.

One important key to success is self-confidence. An important key to self-confidence is preparation.

Success is not the key to happiness. Happiness is the key to success. If you love what you do, you'll be successful.

“Own initiative is a tooth of the key for door of success”

Giving responsibility is the key to success with boys, especially with the rowdiest and most difficult boys.