In plain words, ours
Real philosophers spend their lives practising for death, so it frightens them less than anyone.
In fact, then, Simmias, said he, the true philosophers practice dying, and death is less terrible to them than to any other men.
Plato, Phaedo 67eTranslated by Harold North Fowler (1914)Read the full passage (Plato, Phaedo 67e, opens scaife.perseus.org)