对抗病毒是一场持续的战斗,科学必须始终领先一步。
Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric.
Freedom is never voluntarily given by the oppressor; it must be demanded by the oppressed.
The reason that the invisible hand often seems invisible is that it is often not there.
与我们内心的力量相比,过去和未来的事情都是微不足道的。