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The best books are those that make you feel less alone.
最好的书是让你感到不再孤独的书。
出自汉·桓宽《盐铁论·申韩》。善于治理国家的人,一发现弊病就立即补救,一看到漏洞就立即堵塞。
The beauty of physics lies in its ability to explain the complex with the simple.
Mathematics is a living subject, constantly evolving and growing.