Clever quips (paraphrased)
Physics research is like sex: sometimes something useful is produced,
but that's not why we do it.
-- Richard Feynman
"If we knew what it was we were doing, it would not be called research,
-- Albert Einstein
or "Basic research is what I'm doing when I don't know what I'm doing."
-- Wernher von Braun (Thanks Jurph)
A mathematician is a machine for turning coffee into theorems.
-- Pál Erdös
He who foresees calamities suffers them twice over.
Nodes of mine which need regular maintainance