of that great sea of oblivion which shall hereafter swallow up all that
he is and does, are ever present to his mind; they are thoughts to which
he recurs more constantly than any other, and from which he always draws
the same moral lesson.

"Since it is possible that thou mayest depart from life this very
moment, regulate every act and thought accordingly.... Death certainly,
and life, honour and dishonour, pain and pleasure, all these things
happen equally to good men and bad, being things which make us neither
better nor worse. Therefore they are neither good nor evil." (ii. 11.)

Elsewhere he says that Hippocrates cured diseases and died; and the
Chaldaeans foretold the future and died; and Alexander, and Pompey, and
Caesar killed thousands, and then died; and lice destroyed Democritus,
and other lice killed Socrates; and Augustus, and his wife, and
daughter, and all his descendants, and all his ancestors, are dead; and
Vespasian and all his Court, and all who in his day feasted, and
married, and were sick and chaffered, and fought, and flattered, and
plotted, and grumbled, and wished other people to die, and pined to
become kings or consuls, are dead; and all the idle people who are doing
the same things now are doomed to die; and all human things are smoke,
and nothing at all; and it is not for us, but for the gods, to settle
whether we play the play out, or only a part of it. "_There are many
grains of frankincense on the same altar; one falls before, another
falls after; but it makes no difference._" And the moral of all these
thoughts is, "Death hangs over thee while thou livest: while it is in
thy power be good." (iv. 17.) "Thou hast embarked, thou hast made the
voyage, thou hast come to shore; get out. If, indeed, to another life
there is no want of gods, not even there. But if to a state without
sensation, thou wilt cease to be held by pains and pleasures." (iii. 3.)