Jack's tattoo's don't actually say "He walks among us, but he is not one of us." In fact this is nowhere near correct. A word by word explanation of the 4 Chinese characters on the tattoo: The first character means "eagle". The second character means "strike", as a verb. The third one means "long". The final one means "sky","space","void","empty". These characters are pronounced "ying ji chang kong" (in PinYin) These four characters are taken from a famous poem written by Chairman Mao Tse-tung (MAO Zhedong). It can be roughly translated as "Eagles high, cleaving sky", or more simply, "the Eagles fly up on the sky". But the poem itself has a deeper meaning. In the end of the first stanza, the poet asks, "who masters fate's rise and descent?"