The human being is a sun, and the senses are his planets.
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。
唯一安全的系统是关闭的,浇筑在混凝土块中,并密封在有武装警卫的铅衬房间中。
The complexity of viruses reminds us how much we still have to learn about biology.