“Casting aside other things, hold to the precious few; and besides bear in mind that every man lives only the present, which is an indivisible point, and that all the rest of his life is either past or is uncertain. Brief is man's life and small the nook of the earth where he lives; brief, too, is the longest posthumous fame, buoyed only by a succession of poor human beings who will very soon die and who know little of themselves, much less of someone who died long ago.”