"An expert is a man who has made all the mistakes,
which can be made, in a very narrow field."
Niels Bohr
"A good stack of examples, as large as possible,
is indispensable for a thorough understanding of any
concept, and when I want to learn something new,
I make it my first job to build one."
Paul Halmos
"Information: the negative reciprocal value
of probability."
Claude Shannon