It's always too early to quit.
Expect problems and eat them for breakfast.
If you've got a talent, protect it.
Be thine own palace, or the world's thy jail.
The dog that trots about finds a bone.
Problems are not stop signs, they are guidelines.
What you do today can improve all your tomorrows.
Wherever you are - be all there.
Always desire to learn something useful.
Leap, and the net will appear.
That is a secondary teacher conception - the writer as an observer.