First of all there is matter—and, remarkably enough, all matter is the same. The matter of which the stars are made is known to be the same as the matter on the earth...The same kinds of atoms appear to be in living creatures as in non-living creatures. - Richard Feynman
Opposites attract only in non-living things like seen in a positively-charged cation and negatively-charged anion; but in a living beings, the attraction is ONLY seen in between the same/similar character, positive or negative, people. - Anuj Somany