Distrust interested advice.
A liar will not be believed, even when he speaks the truth.
It is not only fine feathers that make fine birds.
If you wish me well, do not stand pitying me, but lend me some succour as fast as you can; for pity is but cold comfort when one is up to the chin in water, and within a hair's breadth of starving or drowning.
Gratitude is the sign of noble souls.
People often grudge others what they cannot enjoy themselves.