Bion used to say that the way to the shades below was easy; he could go there with his eyes shut.

Bion of Borysthenes (c. 325-c. 250 BC) Greek philosopher, cynic, wit

In Diogenes Laërtius, Bion, iii

Alt. trans.: "The road to Hades is easy to travel; at any rate men pass away with their eyes shut." (cited as iv. 49).