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爱情是有魔力的,但如果放弃责任,这份魔力就会消失。
生活就像一首美妙的音乐,只有歌词是错乱的。
数学是一门活生生的学科,随着新的思想和发现不断演变。
If you are born poor it's not your mistake, but if you die poor it's your mistake.
The world owes all its onward impulses to men ill at ease; the happy man inevitably confines himself within ancient limits.