人生最难的是知道该跨过哪座桥，又该烧掉哪座桥。
银行要平衡好规模、效益和质量的关系。
教育者的心必须是一团活生生的火焰，能够点燃年轻人灵魂的火焰。
Society can and does execute its own mandates， and if it issues wrong mandates instead of right， or any mandates at all in things with which it ought not to meddle， it practices a social tyranny more formidable than many kinds of political oppression， since， though not usually upheld by such extreme penalties， it leaves fewer means of escape， penetrating much more deeply into the details of life， and enslaving the soul itself.
拯救犀牛的唯一方法是拯救它所生活的环境，因为它与数百万其他动植物物种之间存在相互依赖关系。
科学不仅仅是发现新事物，还包括提高世界各地人们的生活质量。
The essence of computation lies in the transformation of information.