Be gentle to all and stern with yourself.

The wise does at once what the fool does at last.

Things do not happen. Things are made to happen.

What you do today can improve all your tomorrows.

Quality is not an act, it is a habit.

Know or listen to those who know.

To know oneself, one should assert oneself.

I can, therefore I am.

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