心理学家必须描述,而非解释。
塑料的真正成本不在于生产,而在于它的后续处理。
中心地的规模和分布并非偶然,而是遵循一定的规律。
The past is a source of knowledge, and the future is a source of hope. Love of the past implies faith in the future.
摆脱诱惑的唯一方法就是屈服于它。
The past is never dead. It's not even past.