"Remember how long you have been putting off these things, and how many times the gods have given you days of grace, which you have not availed yourself of. It is time to realize the nature of the universe of which you are a part, and of that controlling Power whose offspring you are; and that your time has a limit set to it—use it, therefore, to advance your enlightenment, or it will be gone, and never in your power again."
— Marcus Aurelius, Meditations (translated by George Long)