推动的关键在于让正确的选择变得容易。
"Grief does not change you, Hazel. It reveals you."
创新不仅仅是创造新产品，而是重新构想我们如何解决问题。
The galactic center is a unique natural experiment in strong gravity.
Freedom of men under government is to have a standing rule to live by, common to everyone, and not to be subject to the inconstant, uncertain, arbitrary will of another man.