A quote
Cruelty usually follows wine-bibbing; for a man’s soundness of mind is corrupted and made savage. Just as a lingering illness makes men querulous and irritable and drives them wild at the least crossing of their desires, so continued bouts of drunkenness bestialize the soul. For when people are often beside themselves, the habit of madness lasts on, and the vices which liquor generated retain their power even when the liquor is gone.
Seneca·Letter 83 — On Drunkenness (§26)·trans. Gummere