Either you run the day or the day runs you.
You never know what motivates you.
The wise does at once what the fool does at last.
Be thine own palace, or the world's thy jail.
Know or listen to those who know.
Things do not happen. Things are made to happen.
Only the educated are free.
Never complain and never explain.
The dog that trots about finds a bone.
The secret of getting ahead is getting started.
Imagination is as vital to any advance in science as learning and precision are essential for starting points.