Be gentle to all and stern with yourself.
You never know what motivates you.
Problems are not stop signs, they are guidelines.
Know or listen to those who know.
Quality is not an act, it is a habit.
Leap, and the net will appear.
Who seeks shall find.
After a storm comes a calm.
The dog that trots about finds a bone.
What you do today can improve all your tomorrows.
A good teacher must be able to put himself in the place of those who find learning hard.