So sometimes things are ahead and sometimes they are behind; Sometimes breathing is hard, sometimes it comes easily; Sometimes there is strength and sometimes weakness; Sometimes one is up and sometimes down. Therefore the sage avoids extremes, excesses, and complacency.
LaoziDo nondoing, strive for nonstriving, savor the flavorless, regard the small as important, make much of little, repay enmity with virtue; plan for difficulty when it is still easy, do the great while it is still small. The most difficult things in the world must be done while they are easy; the greatest things in the world must be done while they are small.
Laozi