A man who reviews the old so as to find out the new is qualified to teach others.
Without feelings of respect, what is there to distinguish men from beasts?
Therefore the superior man is watchful over himself, when he is alone.
A youth is to be regarded with respect. How do we know that his future will not be equal to our present? If he reach the age of forty or fifty, and has not made himself heard of, then indeed he will not be worth being regarded with respect.
Wisdom is rooted in watching with affection the way people grow.
Every man knows the smell of his own fart.