"In order to understand this and, in general, the nature of knowledge and the nature of being, as well as their interrelation, it is necessary to understand the relation of knowledge and being to 'understanding.'
"Knowledge is one thing, understanding is another thing.
"People often confuse these concepts and do not clearly grasp what is the difference between them.
"Knowledge by itself does not give understanding. Nor is understanding increased by an increase of knowledge alone. Understanding depends upon the relation of knowledge to being. Understanding is the resultant of knowledge and being. And knowledge and being must not diverge too far, otherwise understanding will prove to be far removed from either. At the same time the relation of knowledge to being does not change with a mere growth of knowledge. It changes only when being grows simultaneously with knowledge. In other words, understanding grows only with the growth of being.
"In ordinary thinking, people do not distinguish understanding from knowledge. They think that greater understanding depends on greater knowledge. Therefore they accumulate knowledge, or that which they call knowledge, but they do not know how to accumulate understanding and do not bother about it.
"And yet a person accustomed to self-observation knows for certain that at different periods of his life he has understood one and the same idea, one and the same thought, in totally different ways. It often seems strange to him that he could have understood so wrongly that which, in his opinion, he now understands rightly. And he realizes, at the same time, that his knowledge has not changed, and that he knew as much about the given subject before as he knows now. What, then, has changed? His being has changed. And once being has changed understanding must change also.
"The difference between knowledge and understanding becomes clear when we realize that knowledge may be the function of one center. Understanding, however, is the function of three centers. Thus the thinking apparatus may know something. But understanding appears only when a man feels and senses what is connected with it.
