我了解到人们会忘记你说过的话，忘记你做过的事，但永远不会忘记你带给他们的感受。

Un libro es un diálogo infinito entre el autor y el lector.

Around computers it is difficult to find the correct unit of time to measure progress. Some cathedrals took a century to complete. Can you imagine the grandeur and scope of a program that would take as long?

没有什么比不快乐更有趣了。