科学的进步不是一条直线,而是一个螺旋,总是在前进,又总是回到起点。
You can’t connect the dots looking forward; you can only connect them looking backwards.
应对不自由世界的唯一方法,是变得如此绝对自由,以至于你的存在本身就是一种反抗。
We need to be part of the solution, not part of the problem.
We must invest in people as much as we invest in machinery.