Changes

[[Freud]] normally uses the word "'''''[[Instinkt]]'''''" ("'''[[instinct]]'''") to refer to a relatively ''[[nature|fixed]]'' and ''[[nature|unchangeable]]'' set of [[instinct|behavioral patterns]] "peculiar to an [[nature|animal species]], varying little from one member of this species to another and unfolding in accordance with a temporal scheme which is generally resistant to change and apparently geared to a purpose."<ref>Laplanche, Jean and Pontalis, Jean-Bertrand. ''The Language of Psychoanalysis''. Karnac Books, 1996</ref>

"'''''[[Trieb]]'''''" ("[[trieb|drive]]") differs from '''''[[Instinkt]]''''' in that it is extremely [[development|variable]], and [[development|develops]] in ways which are [[time|contingent]] on the life history of the [[subject]].