Know or listen to those who know.
To know oneself, one should assert oneself.
Things do not happen. Things are made to happen.
Never complain and never explain.
Begin to be now what you will be hereafter.
Who seeks shall find.
If you've got a talent, protect it.
Be thine own palace, or the world's thy jail.
If you think you can do it, you can.
Be gentle to all and stern with yourself.
To listen well is as powerful a means of communication and influence as to talk well.