Everything in the world is dual, the interaction of duality and makes an eternal first push, forcing the development of movement, whether in the form of a spiral, in the form of a ring or a tunnel. Examples of a huge mass: the law of dialectics of unity and struggle of opposites; corpuscular-wave dualism of quantum mechanics; binary system of numbering; formation of a new organism by merging two haploid cells; good - evil; love - hatred; death - life; good - bad; idealism - materialism; capitalism - socialism; rich - poor; smart - fool; he - she; alternation of seasons, days and nights... The list is endless. So, perhaps, the antagonism of these two concepts does not exist; there are just different approaches to solving this most important question of philosophy: where did everything come from? However, these two basic concepts imply different concepts: in materialism it is the primacy of matter, nature, objective reality and consideration of consciousness as properties of matter(hence the emphasis on science, education, enlightenment). And idealism has the primary spirit, consciousness and consideration of matter, consciousness as something secondary, derivative (hence the emphasis on religion, mysticism).