De Somniis (lib. i-ii)

For in the case of some men, it relaxes the sternness and moroseness of their character, and relieves them of their cares, and assuages their anger and their sorrow, and brings their dispositions into a milder mood, and makes their souls placable. But of others again, it cherishes the angry passions, and binds their pains firmly, and excites their feelings of love, and stimulates their rudeness; rendering their mouth talkative, their tongue unbridled, emancipating their external senses from all restraint, rendering their passions furious, and their whole mind violent and excited towards every object.

So that the condition of the men first-mentioned appears to resemble an untroubled calm in fine weather, or a waveless tranquillity at sea, or a most peaceful and steady state of affairs in a city. But the condition of those whom I have last described, is more like a violent and unremitting gale, or a sea tossed by a storm into vast billows, or a sedition, an evil more fearful than even interminable and irreconcileable war.