One: My life is limited, but so is my knowledge. With restrictions, there is no restriction, and it is almost there!
Human life is limited, but knowledge is infinite. Pursuing infinite knowledge with limited life is doomed to failure.
Two: between heaven and earth, if it is a blink of an eye, it is sudden.
Life exists between heaven and earth, just like a white horse running in front of a tiny gap, and it passes in a blink of an eye.
Three: secular people all like their own appearance, and the wicked are different from themselves.
Secular people like others to agree with them, but hate others to oppose them.
Four: bereavement is greater than heart death, and death comes second.
The greatest sorrow of mankind is mental numbness and dullness, but the death of the body is second.
Five: Well, frogs can't talk in the sea, and summer insects can't talk in the ice.
You can't talk about the sea as a frog in the well, because it is limited by the narrow living environment; You can't talk about ice with summer insects, because the four seasons are different and it can't experience it.