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現代文化的發展特點是一個人可能稱之為客觀精神對主觀精神的支配。

譯文：如果聽到別人毀謗我就大發雷霆,那就如同春蠶吐絲成繭一樣,自己把自己束縛了。

Read, read, read. Read everything — trash, classics, good and bad, and see how they do it. Just like a carpenter who works as an apprentice and studies the master. Read! You'll absorb it. Then write. If it's good, you'll find out. If it's not, throw it out of the window.

代數分析是所有科學中最廣泛和最確定的；它是唯一具有不變和可靠方法的一門科學。