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Your own mind is a sacred enclosure into which nothing harmful can enter except by your permission.
你自己的心灵是一个神圣的围墙,除非得到你的许可,否则没有任何有害的东西能够进入。
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.
谷物种植既是一门艺术也是一门科学——既需要直觉也需要数据。
物理学不仅仅是解决问题,它是关于理解现实的本质。