关键不在于我们相信什么,而在于为何相信;道德责任由此开始。
It is not what we believe, but why we believe it; moral responsibility begins there.  
The old-fashioned dictator does not exist under scientific management.
有时帮助穷人的最好方式是给他们现金,让他们自己决定如何使用它。
Nature does not waste, and neither should we.
"The greatest mystery is not in the stars, but in ourselves."