The learned person who only talks will never Penetrate to the inner heart of humans.
Advice is priceless: when it becomes interference it is preposterous.
If you want to make an ordinary man happy, or think that he is happy, give him money, power, flattery, gifts, honours. If you want to make a wise man happy - improve yourself!
A motto of the human race: Let me do what I like, and give me approval as well.
When tomorrow comes, think tomorrow's thoughts.
One cannot learn from someone whom one distrusts.