Children who wish to become good and great men or good and noble women, should try to know well all the people whom they meet. Thus they will find that there is no one who has not much of good; and when they see some great folly, or some meanness, or some cowardice, or some fault or weakness in another person, they should examine themselves carefully. Then they will see that, perhaps, they too have some of the same fault in themselves - although perhaps it does not come out in the same way - and then they must try to conquer that fault.