" The whole ground of human life seems to some to have been gone over by
their predecessors, both the heights and the valleys, and all things to
have been cared for. According to Evelyn, "the wise Solomon prescribed
ordinances for the very distances of trees; and the Roman prætors have
decided how often you may go into your neighbor's land to gather the
acorns which fall on it without trespass, and what share belongs to that
neighbor." Hippocrates has even left directions how we should cut our
nails; that is, even with the ends of the fingers, neither shorter nor
longer. Undoubtedly the very tedium and ennui which presume to have
exhausted the variety and the joys of life are as old as Adam. But man's
capacities have never been measured; nor are we to judge of what he can
do by any precedents, so little has been tried. Whatever have been thy
failures hitherto, "be not afflicted, my child, for who shall assign to
thee what thou hast left undone? "

― Henry David Thoreau , Walden