
In the course of reading Hadamard's "The Psychology of Invention in the
Mathematical Field", I have come across evidence supporting a fact
which we coffee achievers have long appreciated:  no really creative,
intelligent thought is possible without a good cup of coffee.  On page
14, Hadamard is discussing Poincare's theory of fuchsian groups and
fuchsian functions, which he describes as "... one of his greatest
discoveries, the first which consecrated his glory ..."  Hadamard refers
to Poincare having had a "... sleepless night which initiated all that
memorable work ..." and gives the following, very revealing quote:

	"One evening, contrary to my custom, I drank black coffee and
	could not sleep.  Ideas rose in crowds;  I felt them collide
	until pairs interlocked, so to speak, making a stable
	combination."

Too bad drinking black coffee was contrary to his custom.  Maybe he
could really have amounted to something as a coffee achiever.
