The Pleasure principle (n.) works through pleasure and unpleasure, almost the only inner happenings consciousness can feel — and they automatically steer the flow of mental energy.
The Pleasure principle (n.) runs the mind from the start, yet its programme is at loggerheads with the whole world, macrocosm and microcosm alike.
The Pleasure principle (n.) is the id's compass in its struggle against Eros — a way of getting rid of the tensions love keeps introducing.
The Pleasure principle (n.) does not protect us from real injuries, only from one particular injury to the mind's economy — it is a long way from self-preservation.
The Pleasure principle (n.) makes a pleasure-ego that swallows whatever pleases and spits out whatever pains, projecting part of itself into the world as hostile — so self = pleasure, world = unpleasure.
The Pleasure principle (n.) rules the oldest part of the mind: reach for pleasure, flinch from anything that might hurt.
The Pleasure principle (n.) speaks for the libido, the Nirvana principle for the death instinct, the reality principle for the world outside.