A quote
What man can you show me who places any value on his time, who reckons the worth of each day, who understands that he is dying daily? For we are mistaken when we look forward to death; the major portion of death has already passed. Whatever years lie behind us are in death’s hands. Therefore, Lucilius, do as you write me that you are doing: hold every hour in your grasp. Lay hold of to-day’s task, and you will not need to depend so much upon to-morrow’s. While we are postponing, life speeds by.
Seneca·Letter 1 — On Saving Time (§2)·trans. Gummere