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Agriculture is the foundation of manufactures, since the productions of nature are the materials of art.
我们所看到的改变了我们所知道的。我们所知道的改变了我们所看到的。
煤炭的未来取决于经济增长与环境保护之间的平衡。
The beauty of physics lies in its ability to reveal the profound simplicity underlying the apparent complexity of the universe.
I don't need a reason to be fearless.
质量从来不是偶然的;它始终是智慧努力的结果。