模型是对现实的简化表示,但其价值在于它能够提供不立即显而易见的见解。
Every building is built for a specific purpose in a specific place for a specific society.
Every fall is for a better stand up.
我是一个美国黑人,我为我的种族感到骄傲。我为自己是谁感到骄傲。我有许多自豪和尊严。