s, a, e, l, n, p, c, r, i, u are letters that make 'pleasure-pain principle'
PA, pain, principle, IP, re, EAS, PR, INC, Ci, Pa, in principle, RI, Ea, sure, ain, ci, as, in, AI, pleasure, plea, ai, lea, Ur, Asur, Sur, AS, IN, NC, Re, pa, LE, As, In, Pr are words within 'pleasure-pain principle'
1 possible definitions for 'pleasure-pain principle'
Under this definition, pleasure-pain principle is a noun and has the following properties:
pleasure principle, pleasure-unpleasure principle have the same meaning as 'pleasure-pain principle'
reality principle has the opposite meaning of pleasure-pain principle
'pleasure-pain principle' can be a type of principle.
'pleasure-pain principle' can be a category of psychoanalysis, analysis, depth psychology.