Technology is only as useful as the people who use it.
The most profound ideas in mathematics often arise from the simplest observations.
一个人若不能治理自己,便不能治理家庭;若不能治理家庭,便不能治理城市;若不能治理城市,便不能治理国家。
教育是富有时的饰品,穷乏时的避难所。
When you can live forever, what do you live for?