I can, therefore I am.

Be gentle to all and stern with yourself.

If you think you can do it, you can.

The dog that trots about finds a bone.

Quality is not an act, it is a habit.

What you do today can improve all your tomorrows.

To know oneself, one should assert oneself.

Either you run the day or the day runs you.

Expect problems and eat them for breakfast.