Give a bowl of rice to a man and you will feed him for a day. Teach him how to grow his own rice and you will save his life.
Not to alter one's faults is to be faulty indeed.
To know that one knows what one knows and to know that one doesnt know what one doesnt know there lies true wisdom.
Do not worry about holding high position; worry rather about playing your proper role.
Don't complain about the snow on your neighbor's roof when your own doorstep is unclean.