In order to practice self-control in all one does in everyday life, the best thing is to develop in one's nature a certain amount of indifference. Every word that is said to one need not be taken to be so important that it upsets one's whole being, disturbs one's balance, and robs one of one's will-power. There are things that matter; but there are many things in one's everyday life which do not matter much, and one is often apt to put undue stress upon them.