The most exciting breakthroughs of the 21st century will not occur because of technology but because of an expanding concept of what it means to be human.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

筹划洋人的事情一定要先了解洋人的情况，要了解洋人的情况一定知道洋人的情况。

经验只是我们给错误起的名字。

解释：百姓参加了劳动就会因劳累而去思考如何节俭律己，若经常思考这些问题，就会使自己的心地善良起来；无所事事就会放肆起来，一旦放肆，就会忘掉善良，没有善良就会滋生作恶之心。

生活是一场在不稳定舞台上表演的悲喜剧。