When on tiptoe you cannot stand firm, when running you cannot go far, make a display of yourself and you will not be illustrious. Be righteous and you will not be distinguished, boast of your abilities and you will not have merit, be conceited and you will not endure.
People who act in such ways are likely to be detested, and their path will be burdensome.
However to those who follow the Tao, these things are like having too much to eat, and are avoided.
(from Tao Te Ching, verse 24, translation by Robert Brookes)