Without hard work, nothing grows but weeds.
Be gentle to all and stern with yourself.
Always desire to learn something useful.
The most effective way to do it, is to do it.
Things do not happen. Things are made to happen.
Problems are not stop signs, they are guidelines.
Expect problems and eat them for breakfast.
Who seeks shall find.
You never know what motivates you.
Wherever you are - be all there.
That is a secondary teacher conception - the writer as an observer.