I’ve more than once trampled an enemy for over an hour. You see, I want to get to know what life really is, what life’s like down our way.”6 6
　　In children we often see this path to knowledge quite overtly. The child takes something apart, breaks it up in order to know it; or it takes an animal apart; cruelly tears off the wings of a butterfly in order to know it, to force its secret. The cruelty itself is motivated by something deeper: the wish to know the secret of things and of life.
　　The other path to knowing “the secret” is love. Love is active penetration of the other person, in which my desire to know is stilled by union. In the act of fusion I know you, I know myself, I know everybody – and I “know” nothing. I know in the only way knowledge of that which is alive is possible for man – by experience of union – not by any knowledge our thought can give. Sadism is motivated by the wish to know the secret, yet I remain as ignorant as I was before. I have torn the other being apart limb from limb, yet all I have done is to destroy him. Love is the only way of knowledge, which in the act of union answers my quest. In the act of loving, of giving myself, in the act of penetrating the other person, I find myself, I discover myself, I discover us both, I discover man.
　　The longing to know ourselves and to know our fellow man has been expressed in the Delphic motto “Know thyself.” It is the mainspring of all psychology. But inasmuch as the desire is to know all of man, his innermost secret, the desire can never be fulfilled in knowledge of the ordinary kind, in knowledge only by thought. Even if we knew a thousand times more of ourselves, we would never reach bottom. We would still remain an enigma to ourselves, as our fellow man would remain an enigma to us. The only way of full knowledge lies in the act of love: this act transcends thought, it transcends words. It is the daring plunge into the experience of union. However, knowledge in thought, that is psychological knowledge, is necessary condition for full knowledge in the act of love. I have to know the other person and myself objectively, in order to be able to see his reality, or rather, to overcome the illusions, the irrationally distorted picture I have of him. Only if I know a human being objectively, can I know in his ultimate essence, in the act of love.7
　　The problem of knowing man is parallel to the religious problem of knowing God. In conventional Western theology the attempt is made to know God by thought, to make statements about God. It is assumed that I can know God in my thought. In mysticism, which is the consequent outcome of monotheism (as I shall try to show later on), the attempt is given up to know God by thought, and it is replace by the experience of union with God in which there is no more room – and no need – for knowledge about God.
　　The experience of union, with man, or religiously speaking, with God, is by no means irrational. On the contrary, it is as Albert Schweitzer has pointed out, the consequence of rationalism, its most daring and radical consequence. It is based on our knowledge of the fundamental, and not accidental, limitations of our knowledge. It is the knowledge that we shall never “grasp” the secret of man and of the universe, but that we can know, nevertheless, in the act of love. Psychology as science has its limitations, and as the logical consequence of theology is mysticism, so the ultimate consequence of psychology is love.
　　Care, responsibility, respect and knowledge are mutually interdependent. They are a syndrome of attitudes which are to be found in the mature person; that is, in the person who develops his own powers productively, who only wants to have that which he has worked for, who has given up narcissistic dreams of omniscience and omnipotence, who has acquired humility based on the inner strength which only genuine productive activity can give.⑩本⑩作⑩品⑩由⑩⑩網⑩友⑩整⑩理⑩上⑩傳⑩
　　Thus far I have spoken of love as the overcoming of huma