He who stands on his tiptoes can not stand firm; he who stretches his legs can not walk easily. So, self-expression will not be focused; self-righteous behavior will not be recognized; self-display will not be regarded as contribution; self-glorification will make people stop.
These kind of behavior, viewed from the standpoint of the Tao, are like remnants of food, or a tumour on the body, which all dislike. So those who pursue the course of the Tao do not adopt and allow them.