Examples of proverbs expressing general truths and observations

A bird in the hand is worth two in the bush.

A friend in need is a friend indeed.

A bad penny always come back

A hungry man is an angry man.

Better be the head of a dog than the tail of a lion.

All that glitters is not gold.

Better to commend the virtue of an enemy, than flatter the vice of a friend.

Clothes don't make the man.