“… that philosophy itself is nothing else than a preparation for and meditation on death. Death and philosophy have this in common: death separates the soul from the body; philosophy draws off the mind from bodily things to the contemplation of truth and virtue: for he is not a true philosopher who is led away by bodily pleasures, since the senses are the source of ignorance and all evil. The mind, therefore, is entirely occupied in meditating on death, and freeing itself as much as possible from the body. How, then, can such a man be afraid of death? He who grieves at the approach of death can not be a true lover of wisdom, but is a lover of his body.”

Plato (Apology, Crito, and Phaedo of Socrates)