Nemo altero fragilior est: nemo in crastinam sui certior.
[No man is frailer than another: no man more certain of the morrow.]The usefulness of living lies not in duration but in what you make of it. Some have lived long and lived little. See to it while you are still here. Whether you have lived enough depends not on a count of years but on your will.
Do you think you will never arrive whither you are ceaselessly heading? Yet every road has its end. And, if it is a relief to have company, is not the whole world proceeding at the same pace as you are?
~ Montaigne, The Complete Essays (1587-88)