From chapter 2,
a very Rosen-like paragraph:
"The central thesis of this book is that metaphorical
reasoning is at the very core of what scientists do when they design
experiments, make discoveries, formulate theories and models, and describe their
results to others—in short, when they do science and communicate about it.
Metaphor is a tool of great conceptual power. It enables the scientist to
interpret the natural world in wonderful and productive ways. At the same time,
the metaphorical reasoning that lies at the heart of scientific thought and
imagination is constrained in ways that go toward defining the range and
character of science."