Basic forces in mind:
1. 性欲libido/sexuality - pleasure principle
2. 死亡的欲望 death drive - to undo the bonds of life
Mind was made up of three elements:
ID 本我 an entirely unconscious part (urge to death and sexual pleasure)
superego 超我 an internal conscience (impose impossible ideals and inflict merciless criticism)
ego 自我 (btw warring mind and external reality)
