It's always too early to quit.
Expect problems and eat them for breakfast.
Wherever you are - be all there.
Who seeks shall find.
Leap, and the net will appear.
The wise does at once what the fool does at last.
Know or listen to those who know.
Well done is better than well said.
The most effective way to do it, is to do it.
The secret of getting ahead is getting started.
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.