Letters 93.6

And yet I would not on that account decline for myself a few additional years; although, if my life’s space be shortened, I shall not say that I have lacked aught that is essential to a happy life. For I have not planned to live up to the very last day that my greedy hopes had promised me; nay, I have looked upon every day as if it were my last. Why ask the date of my birth, or whether I am still enrolled on the register of the younger men? What I have is my own.

Seneca, Letters to Lucilius 93.6, translated by Richard Mott Gummere