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你是你生命里的画家，黑白暗淡或者是色彩缤纷都由你来决定。。公仔箱論壇- J6 J: ?8 T  d4 o7 a, b
Act only from moral rules that you can at the same time obey will be the universal moral rule., C- B& [/ g& _& L* e* H
Act so that you always treat others as an end, and never as a means to an end only.