He is happy in his wisdom who has learned at another's expense.

To snatch the worm from the trap.

When you fly from temptation, don't leave a forwarding address. Where there's smoke there's fire.

Fire is next akin to smoke.

It is well for one to know more than he says.

To a well deserving person God will show favor. To an ill deserving person He will simply be just.

'He means well' is useless unless he does well.