Blame-all and Praise-all are two blockheads

Praise more, blame less.

Never praise your Cider, Horse, or Bedfellow

I am about courting a girl I have had but little acquaintance with. How shall I come to a knowledge of her faults, and whether she has the virtues I imagine she has ? Answer. Commend her among her female acquaintances.

To find out a girl's faults, praise her to her girl friends.

Clean your finger before you point at my spots