Umbono wokwahlukana kwabantu kwiindidi ezine zabonakala iwaka leminyaka eyadlulayo kwimvuburat. Emva koko wayekholelwa ukuba umahluko ngawo ulwelo lusebenza ngaphakathi emzimbeni - igazi, ibhule, i-bile. Emva kwexesha kwavela ukuba ityala lalikwinkqubo yovalo. Kwaye namhlanje, ngokuziphatha komntu, unokuchaza ngokulula ukuba yeyiphi kwezi ntlobo ezibhekiswa kuzo. Ewe kunjalo, kukho iintlobo ezahlukeneyo zabalinganiswa, kodwa amanqaku aphambili ahlala alandelwa ziingcali zengqondo. Ngapha koko, iingcali ziqinisekile ukuba ubushushu ziimpawu zengyukumelo ezibekwe kwimfuza nganye. Ke ngoko, ukuba uza kuphuma kwi-salainik eMelancholic, akunakuphumelela. Ngaba uyazi ukuba uziva njani uhlobo lweentlobo? Mhlawumbi uyasebenza kwaye uyakhanyisa i-choleric, kwaye mhlawumbi iimpawu ezininzi ezenziwa kuwe kwangoko - i-theyniin ithemba kunye nokucotha kwe-hlegmatics? Ukuze ufumane umzobo opheleleyo wengqondo, kufuneka uphendule imibuzo embalwa entle. Kodwa umbulelo kubo ukuba uya kufunda ukuba zeziphi izinto oziphetheyo.