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奶牛养殖既是一门艺术也是一门科学——尊重两者对于成功至关重要。
The greatest crimes are committed not in the name of evil, but in the name of good.
Sorrow is hushed into peace in my heart like the evening among the silent trees.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'