Note f98 — HISTORY OF ZEN BUDDHISM FROM BODHI-DHARMA TO HUI-NENG (YENO) (520 A.D.–713 A.D.)

This means: When the absolute oneness of things is not properly understood, negation as well as affirmation will tend to be one-sided view of reality. When Buddhists deny the reality of an objective world, they do not mean that they believe in the unconditioned emptiness of things; they know that there is something real which cannot be done away with. When they uphold the doctrine of void this does not mean that all is nothing but an empty hollow, which leads to a self-contradiction. The philosophy of Zen avoids the error of one-sidedness involved in realism as well as in idealism.