(一)fromdictionary
1.AmemberofthegenusHomoandespeciallyofthespeciesH.sapiens.
2.Aperson
(二)fromWarcraft(Agame)
Humanbeingsdefinethemselvesinbiological,social,andspiritualterms.Biologically,humansareclassifiedasthespeciesHomosapiens(Latinfor"knowingman"):abipedalprimatebelongingtothesuperfamilyofHominoidea,withalloftheapes:chimpanzees,gorillas,orangutans,andgibbons
(三)fromAlbertEinstein
Manis,atoneandthesametime,asolitarybeingandasocialbeing.Asasolitarybeing,heattemptstoprotecthisownexistenceandthatofthosewhoareclosesttohim,tosatisfyhispersonaldesires,andtodevelophisinnateabilities.Asasocialbeing,heseekstogaintherecognitionandaffectionofhisfellowhumanbeings,toshareintheirpleasures,tocomfortthemintheirsorrows,andtoimprovetheirconditionsoflife.'-AlbertEinstein(inessay'WhySocialism')