心理学理论的价值是由其实用性衡量的。
The worth of a psychological theory is measured by its usefulness.
每当你发现自己和大多数人站在同一边,你就该停下来反思一下。
The proletariat is the universal class, the class whose radical chains are capable of bursting asunder.
在广州中国国民党恳亲大会的演说,1923年10月15日
I'm just trying to be better every single day.