The wise man looks back into the past, and does not grieve over what is far off, nor rejoice over what is near; for he knows that time is without end.
LaoziCovetousness is the greatest misfortune. One who does not know what is enough will never have enough.
LaoziWho is unhappy with little, won't be with much; who doesn't appreciate the small won't be able to take care of the large; who doesn't have enough with enough is at the margin or virtue, for the physical body lives from one day to another and if it gets what it really needs, there will be time for meditation, as long as if we try to give it everything it desires, endless will be the task.
Laozi