The Unconscious (n.) behaves ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠like an unlaid ghost in analysis: whatever is not yet understood comes back, and cannot rest until the spell is broken.

Amnesia (n.) can ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠swallow an analysis itself: the cured child forgot both the events and their analysis, as a dream analysed at night is gone by morning.

Condemnation (n.) replaces ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠repression in analysis: the automatic, excessive process of repression gives way to temperate, purposeful control by the highest agencies of the mind.

Disease (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠a purely practical concept in neurosis, a matter of summation: no sharp line divides neurotic from normal, and many pass from health to illness, fewer the other way.

Knowledge (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠patchwork: each step forward in knowing leaves an unsolved residue behind.

Psychoanalysis (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠a therapeutic measure rather than an impartial scientific inquiry: its point is not to prove but to change something.

Suggestion (n.) has ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠become a catchword prized for its economy of thought: no one knows or cares what it is, so long as everything awkward in psychology can be labelled with it.

The Aggressive instinct (n.) as ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠Adler proposed it wrongly promotes into a separate instinct the pressing, movement-initiating character that belongs to every instinct.

An Animal (n.) owes ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠much of its importance in myth to the openness with which it displays its sexual functions to the curious child.