EP3 弗洛伊德：
the importance of childhood experience
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)
irrational part of our mind
尽管弗洛伊德的很多理论在科学上站不住脚（临床证据来自他的妻女和一些维也纳的女病人），但是现代科技证明，大脑确实有很多层面储存我们过去生活的记忆
