I WOULD like to go back in history and talk about some very early philosophers. Specifically, two philosophers who lived about the 5th or 6th century BC. Parmenides and Heraclitus. They represent the positions which have influenced the thought of man ever since then; they have great importance for what we are now doing.
Parmenides felt that reality was like a mountain—stable and unchanging. As man explored around this mountain he saw ever different aspects of it and had the illusion of great change; but he was always dealing with the fundamental, unchanging, basic truth—the mountain of reality. Change was superficial and man dealt with the illusion of change rather than any reality of change.
At the same time Heraclitus held reality to be dynamic and changing. It is like the flux of a river. It may look the same most of the time, but the stability in it is
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