科学不仅仅是事实的集合;它是一种思维方式。
最好的投资是投资于你相信的人。
The laws that forbid the carrying of arms are laws of such a nature. They disarm only those who are neither inclined nor determined to commit crimes.... Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.
Sustainability isn't a trend; it's a responsibility.
The Milky Way’s black hole is our closest laboratory for studying extreme gravity.