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.
If one leads them with administrative measures and uses punishments to make them conform, the people will be evasive, but if one leads them with virtue, they will come up to expectations.
Yin and yang, male and female, strong and weak, rigid and tender, heaven and earth, light and darkness, thunder and lightning, cold and warmth, good and evil...the interplay of opposite principles constitutes the universe.
There are three marks of a superior man: being virtuous, he is free from anxiety; being wise, he is free from perplexity; being brave, he is free from fear.