You make mistakes. Mistakes don't make you.

Live in the present. The past is gone; the future is unknown - but the present is real, and your opportunities are now.

It takes 21 days to develop a habit.

What is opportunity, and when does it knock? It never knocks. You can wait a whole lifetime, listening, hoping, and you will hear no knocking. None at all. You are opportunity, and you must knock on the door leading to your destiny. You prepare yourself to recognize opportunity, to pursue and seize opportunity as you develop the strength of your personality, and build a self-image with which you are able to live - with your self-respect alive and growing.

Study the situation thoroughly, go over in your imagination the various courses of action possible to you and the consequences which can and may follow from each course. Pick out the course which gives the most promise and go ahead.

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.

When we consciously and deliberately develop new and better habits, our self image tends to outgrow the old habits and grow into the new pattern.