Why opposites haunt every aspect of life?
Self confidence pushes you to work harder.
Over confidence stops you from working harder.
"Fine Line Between Pleasure & Pain"
Study Shows Brain's 'Pleasure Chemical' Is Involved In Response To Pain Too
Brain has thin line between love and hate, scientists reveal
Taoism says that every thing in creation consists of the pairs of opposites Yin and Yang. Yin represents darkness and Yang represents light.