For nature puts a limit to living as to everything else.
 Marcus Tullius Cicero, On Friendship (44 BC). copy citation

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Author Marcus Tullius Cicero
Source On Friendship
Topic limit living
Date 44 BC
Language English
Reference
Note Translated by E. S. Shuckburgh
Weblink http://www.gutenberg.org/files/2808/2808-h/2808-h.htm

Context

“But if when dead, as some insignificant philosophers think, I am to be without sensation, I am not afraid of dead philosophers deriding my errors. Again, if we are not to be immortal, it is nevertheless what a man must wish—to have his life end at its proper time. For nature puts a limit to living as to everything else. Now, old age is as it were the playing out of the drama, the full fatigue of which we should shun, especially when we also feel that we have had more than enough of it. This is all I had to say on old age.” source