When we are young and again when we are old, we depend heavily on the affection of others. Between these stages we usually feel that we can do everything without help from others and that other people's affection is simply not important. But at this stage I think it is very important to keep deep human affection.
If one assumes a humble attitude, one's own good qualities will increase. Whereas if one is proud, one will become jealous of others, one will look down on others, and due to that there will be unhappiness in society.