Every man worthy of being called a son of man bears his cross and mounts his Golgotha. Many, indeed most, reach the first or second step, collapse pantingly in the middle of the journey, and do not attain the summit of Golgotha, in other words the summit of their duty: to be crucified, resurrected, and to save theirs souls. Afraid of crucifixion, they grow fainthearted; they do not know that the cross is the only path to resurrection. There is no other path.

Author's Introduction, p. 15 - Report to Greco (1965)