"Blessed is he that has come forth from the dizziness of his wine and has seen in others the shamelessness of his drunkenness; then he will understand his own shame. As long as he himself is under the drunkenness of sins, all that he does is beautiful in his eyes. When nature has deviated from its order, it is all alike, to be drunk with wine or with desires; both [states] remove [a man] from what is becoming; both excite in their bearer, the body, the same heat; they are different as to their idea, but one in appearance; and one in madness. There is no equality in their causal ideas; but in their bearers there is no diversity."
- Saint Isaac the Syrian
Reference: www.archive.org/.../isaac_of_nineveh_mystical_treatises_djvu.txt