Every advance in knowledge opens up new questions and new difficulties.
知识的每一次进步都会带来新的问题和新的困难。
Quality means doing it right when no one is looking.
文学是人类的记忆。
如果调试是去除软件错误的过程,那么编程必须是引入它们的过程。
The future of democracy depends on its ability to adapt to new challenges and to renew itself.