"If we ask ourselves whether the concepts of materialism and idealism are understood correctly, we shall discover that they are not. People should know that matter is also spirit. Each of these states is but a manifestation of the one Primary Energy, and every attempt to separate them will fail. Materialism alone is a customary standard for the ignorant, and idealism alone is an equally meaningless banner in the hands of fools. The great evolution must not be demeaned. All the sciences should be summoned to a reasoning based upon solid foundations. Only by applying scientific methods will the significance of evolution be understood."