Against egos

Four frogs sat upon a log that lay floating on the edge of a river. Suddenly the log was
caught by the current and swept slowly down the stream. The frogs were delighted and
absorbed, for never before had they sailed.
At length the first frog spoke, and said, "This is indeed a most marvellous log. It moves
as if alive. No such log was ever known before."
Then the second frog spoke, and said, "Nay, my friend, the log is like other logs, and
does not move. It is the river, that is walking to the sea, and carries us and the log with
it."
And the third frog spoke, and said, "It is neither the log nor the river that moves. The
moving is in our thinking. For without thought nothing moves."
And the three frogs began to wrangle about what was really moving. The quarrel grew
hotter and louder, but they could not agree.
Then they turned to the fourth frog, who up to this time had been listening attentively but
holding his peace, and they asked his opinion.
And the fourth frog said, "Each of you is right and none of you is wrong. The moving is
in the log and the water and our thinking also, but if you look still deeper then nothing
has moved, because nothing can move and there is nowhere to move."
And the three frogs became very angry, for none of them was willing to admit that his
was not the whole truth and that the other two were not wholly wrong; and they were not
ready to think that they didn't know, and this fourth foolish frog -- he knows? It was
against their egos.
Then the strange thing happened -- this has always been happening: the three frogs got
together and pushed the fourth frog off the log into the river.