Psychoanalysis
In Freudian psychoanalysis, drive theory (German: Triebtheorie) refers to the theory of drives, motivations, or instincts, that have clear objects. Examples include what Freud called Eros and Thanatos, the drives toward Life and Death, respectively.
Freud's Civilization and Its Discontents was published in Germany in 1930 when the rise of fascism in that country was well under way, and the warnings of a second European war were leading to opposing calls for rearmament and pacifism. Against this background, Freud wrote "In face of the destructive forces unleashed, now it may be expected that the other of the two 'heavenly forces,' eternal Eros, will put forth his strength so as to maintain himself alongside of his equally immortal adversary.".
Read more about this topic: Drive Theory