The worth of a psychological theory is measured by its usefulness.
心理学理论的价值是由其实用性衡量的。
The strength of a habit is proportional to the amount of reinforcement.
我不是女权主义者，我是人文主义者。
Government has no other end, but the preservation of property.
It is not the nature of magic to be either good or evil, but it is the nature of those who use it.
世界充满了故事，但需要一种特别的人去聆听它们。
The key to making money in stocks is not to get scared out of them.