I can, therefore I am.

Know or listen to those who know.

What you do today can improve all your tomorrows.

Be gentle to all and stern with yourself.

Begin to be now what you will be hereafter.

The most effective way to do it, is to do it.

Quality is not an act, it is a habit.

To know oneself, one should assert oneself.

If you think you can do it, you can.