Libido

The terms libido was introduced by Sigmund Freud and is, at a very basic level, sexual desire and urges. The libido, which is part of the Id, is a sexual energy or force that can come into conflict with the conventions of what is typically considered civilized behavior. Other psychologists, like Carl Jung, viewed the libido more generally and thought it to be more of a creative or psychic energy that helps people accomplish more (like a motivating force).