[一个幽灵在欧洲游荡 / 一個幽靈在歐洲遊蕩, yī gè yōu líng zài ōu zhōu yóu dàngㄧ ㄍㄜˋ ㄧㄡ ㄌㄧㄥˊ ㄗㄞˋ ㄡ ㄓㄡ ㄧㄡˊ ㄉㄤˋ] Ein Gespenst geht um in Europa; the opening sentence of Marx and Engels' "Communist manifesto"
[共产党宣言 / 共產黨宣言, gòng chǎn dǎng xuān yánㄍㄨㄥˋ ㄔㄢˇ ㄉㄤˇ ㄒㄩㄢ ㄧㄢˊ] Manifesto of the Communist Party; "Manifest der kommunistischen Partei" by Marx and Engels (1848)