The progress of science is not a straight line but a spiral, always advancing and always returning to the starting point.
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。
在每个词中，都有一个等待被发现的世界。
我可能已经赢得了搞砸几次的权利。我不想让对失败的恐惧阻止我做我真正关心的事情。
"Every family has its secrets, but in some countries, the secrets are bigger and more dangerous."
There is nothing eternal in us.
"The truth is often ugly, but it must be told."