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It is to the credit of human nature, that, except where its selfishness is brought into play, it loves more readily than it hates.
"Ein Buch ist wie ein Garten, den man in der Tasche trägt."
要养活世界,我们必须先了解它。
最伟大的发明是那些最直接满足人类需求的发明。
The only way to do great work is to love what you do.