Cicero: “But it is much more important that we succeed in keeping our mental operations in harmony with nature's laws.”

But if I am wrong in thinking the human soul immortal, I am glad to be wrong; nor will I allow the mistake which gives me so much pleasure to be wrested from me as long as I live.

I don't wish to depreciate life, as many men and good philosophers have often done; nor do I regret having lived, for I have done so in a way that lets me think that I was not born in vain.

Again, is there not the fact that the wisest man ever dies with the greatest cheerfulness, the most unwise with the least?

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.