实现明天的唯一限制就是我们今天的怀疑。
The only limit to our realization of tomorrow will be our doubts of today.
最危险的谎言是我们对自己说的那些。
我们都是这片土地上的流浪者，心中充满惊奇，灵魂深处藏着梦想。
The danger of the past was that men became slaves. The danger of the future is that men may become robots.
"The security of quantum communication comes from the laws of physics, not from computational complexity."
Better to have, and not need, than to need, and not have.