Be gentle to all and stern with yourself.
I can, therefore I am.
The wise does at once what the fool does at last.
Expect problems and eat them for breakfast.
Never complain and never explain.
The secret of getting ahead is getting started.
Well done is better than well said.
Problems are not stop signs, they are guidelines.
Leap, and the net will appear.
Always desire to learn something useful.
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.