Three things it is best to avoid: a strange dog, a flood, and a man who thinks he is wise

Adversity and loss make a man wise

Reason is the wise man's guide, example the fool's

The best candle is understanding

A fool thinks himself to be wise, but a wise man knows himself to be a fool.

A fence lasts three years, a dog lasts three fences, a horse lasts three dogs, and a man lasts three horses