最好的领导者是那些知道如何跟随的人。
The best leaders are those who know how to follow.
量子场论的发展表明，真空不是空的，而是充满了虚粒子。
A balcony or porch needs to be at least 6 feet (2m) deep or it won’t be used.
States are rational actors that seek to maximize their power and security in an anarchic international system.
"We are all atheists about most of the gods that humanity has ever believed in. Some of us just go one god further."
The only limits you have are the limits you believe.
发明的进步使人类拥有了世纪前最大胆的想象也无法梦见的力量。