Every phenomenon, every process, everything that happens is a manifestation of the interaction and struggle between two opposites: motion and rest, active and passive, light and darkness, outer and inner, masculine and feminine, strength and weakness, hot and cold, dry and wet, and t . etc. And the internal struggle between these two forces in every phenomenon of nature provides its motion and development in certain conditions.
Tuwing hindi pangkaraniwang bagay, ang bawat proseso, ang lahat na mangyayari ay isang paghahayag ng pakikipag-ugnayan at pakikibaka sa pagitan ng dalawang opposites: motion at iba pa, aktibo at maluwag sa loob, liwanag at kadiliman, panlabas at panloob, lalaki at babae, lakas at kahinaan, mainit at malamig, dry at wet, at iba pa at iba pa At ang panloob na pakikibaka sa dalawang pwersa sa bawat kababalaghan ng kalikasan Tinitiyak nito paggalaw at pag-unlad sa ilalim ng ilang mga kundisyon.