are concerned solely with precise
&gt; | observation and rational, discursive thought.
&gt; | To be sure, this rational thinking and careful
&gt; | measurement belong to the scientist's work, just
&gt; | as the hammer and chisel belong to the work of the
&gt; | sculptor.  But in both cases they are merely the
&gt; | tools and not the content of the work.
&gt; |
&gt; | Werner Heisenberg,
&gt; | "The Meaning of Beauty in the Exact Sciences",
&gt; | 'Across the Frontiers', page 182.
&gt;
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