"Courage is not the absence of fear, but the triumph over it."
We do not own our memories; they own us.
把一个简单的想法认真对待。
我发现了!(据传是阿基米德发现浮力原理时的感叹)
The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.