When the tide of misfortune moves over you, even jelly will break your teeth

Risk - If one has to jump a stream and knows how wide it is, he will not jump. If he doesn't know how wide it is, he'll jump and six times out of ten he'll make it.

Courteous men learn courtesy from the discourteous

There are four things every person has more of than they know; sins, debt, years, and foes.

Use your enemy's hand to catch a snake

Use your enemy's hand to catch a snake.