Philosophers are notorious for having private vocabularies. There are some words, of
course, that have a traditional standing in philosophy. Though they may not be used by
all writers in the same sense, they are nevertheless technical words in the discussion
of certain problems. But philosophers often find it necessary to coin new words, or to
take some word from common speech and make it a technical word. This last
procedure is likely to be most misleading to the reader [...]
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After some discussion as to what "essential object" meant, the professor leading the
seminar said something meant to clarify things and drew something that looked like lightning
bolts on the blackboard. "Mr. Feynman," he said, "Would you say an electron is an
'essential object'?"
[...]
I said, "I'll try to answer the professor's question if you will first answer a
question for me, so I can have a better idea of what 'essential object' means. Is a
brick an essential object?"
[...]
Then the answers came out. One man stood up and said, "A brick as an individual, specific
brick. That is what Whitehead means by an essential object."
Another man said, "No, it isn't the individual brick that is an essential object; it's the
general character that all bricks have in common -- their 'brickiness' -- that is the
essential object."
Another guy got up and said, "No, it's not in the bricks themselves. 'Essential object'
means the idea in the mind that you got when you think of bricks."
Another guy got up, and another, and I tell you I never heard such ingenious different
ways of looking at a brick before. And, just like it should in all stories about
philosophers, it ended up in complete chaos.
*