研究心灵就是研究适应行为;每个思想都是生活的工具。
To study the mind is to study adaptation in action; every thought is a tool for living.
我一直在不停地努力,不嘲笑、不哀叹、不嘲笑人类的行为,而是理解它们。
All oppression creates a state of war.