I can, therefore I am.

Quality is not an act, it is a habit.

Either you run the day or the day runs you.

Be thine own palace, or the world's thy jail.

Be gentle to all and stern with yourself.

To know oneself, one should assert oneself.

Leap, and the net will appear.

Know or listen to those who know.

Begin to be now what you will be hereafter.