I can, therefore I am.

Things do not happen. Things are made to happen.

Begin to be now what you will be hereafter.

By failing to prepare, you are preparing to fail.

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

Always desire to learn something useful.

Do not weep do not wax indignant. Understand.

Quality is not an act, it is a habit.

Know or listen to those who know.