经验的直接内容是心理学必须考虑的唯一事实。
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
Never confuse movement with action.
【释义】当商品价格高涨时,要像对待粪土一样迅速出售;当商品价格低廉时,要像对待珠玉一样大量购入。
学习在于改变介于刺激和反应之间的某些中介过程。
文明的分布很大程度上是气候刺激的结果。