We are built to conquer environment, solve problems, achieve goals, and we find no real satisfaction or happiness in life without obstacles to conquer and goals to achieve.

You will act like the sort of person you conceive yourself to be.

Happiness is native to the human mind and its physical machine. We think better, perform better, feel better, and are healthier when we are happy.

Do your worrying before you place your bet, not after the wheel stops turning.

We, whoever we are, must have a daily goal in our lives, no matter how small or great, to make that day mean something.

See yourself reacting to threats, not by running away or evading them, but by meeting them, dealing with them, grappling with them in an aggressive intelligent manner.

It takes 21 days to develop a habit.