Expect problems and eat them for breakfast.
The dog that trots about finds a bone.
Who seeks shall find.
The secret of getting ahead is getting started.
Wherever you are - be all there.
If you think you can do it, you can.
Be thine own palace, or the world's thy jail.
It's always too early to quit.
Be gentle to all and stern with yourself.
If you've got a talent, protect it.
Sometimes they are a matter of luck the photographer could not expect or hope for them. Sometimes they are a matter of patience, waiting for an effect to be repeated that he has seen and lost or for one that he anticipates.