I can, therefore I am.

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

Without hard work, nothing grows but weeds.

To know oneself, one should assert oneself.

Quality is not an act, it is a habit.

Things do not happen. Things are made to happen.

Know or listen to those who know.

What you do today can improve all your tomorrows.

Expect problems and eat them for breakfast.