If you think you can do it, you can.
Be gentle to all and stern with yourself.
You never know what motivates you.
Be thine own palace, or the world's thy jail.
Begin to be now what you will be hereafter.
To know oneself, one should assert oneself.
Quality is not an act, it is a habit.
Leap, and the net will appear.
Know or listen to those who know.
Well done is better than well said.
A teacher must believe in the value and interest of his subject as a doctor believes in health.
A good teacher is a determined person.