I know you will repent it.

When this--fever is past, you will regret--oh, so bitterly." He set his jaw and all the grim strength of the man was suddenly apparent.

"Shall I tell you the secret of success ?" he said abruptly.
"It is just never to look back.

It is the secret of happiness also, if people only realized it.

If you want to make the best of life, you've got to look ahead.