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Good Mathematician vs Great Mathematician

From Ben Orlin's "Math with Bad Drawings" blog (but without the charming illustrations) a wonderful summary of the difference between artisan and artist, titled Good Mathematician vs Great Mathematician:

A good mathematician wants to know how.
   ("Problem solved. So satisfying!")
A great mathematician wants to know why.
   ("Problem ... solved? So unsatisfying!")
A good mathematician selects the most powerful tool for the job.
   ("Welding torch it is!")
A great mathematician selects the least powerful tool for the job.
   ("Nothing a little duct tape can't fix.")
A good mathematician answers questions.
   ("Does it converge? My proof says no!")
A great mathematician questions answers.
   ("OK, so it doesn't converge ... but ... what if we redefine 'convergence'?")
A good mathematician can make arguments intuitive or rigorous.A great mathematician can make arguments intuitive and rigorous.
A good mathematician can get out of a tricky corner.
   ("Phew! Paradox averted!")
A great mathematician can get into a tricky corner.
   ("Ooh ... if I change the problem like this, the paradox gets even worse!")
A good mathematician solves problems by making them more concrete.
   ("Before we build the skyscraper, let's make a model.")
A great mathematician solves problems by making them more abstract.
   ("Before we build the skyscraper, let's study the skyline!")
A good mathematician inventories what they know.
   ("I've got six types of screwdrivers!")
A great mathematician inventories what they don't know.
   ("I'm still missing so many types of screwdrivers!")
A good mathematician loves math.
   ("How was the math today?"
      "Good! Even a little better than yesterday, which was already way better than the day before.")
A great mathematician lives math.
   ("How was the math today?"
      "f(t) very large! And f'(t)>0, though f"(t)<0.")

(cf. Good Mistakes (1999-09-06), Millennium Math (2002-12-05), Mystery to Me (2003-05-30), Prime Obsession (2004-01-04), Hardy-Littlewood Rules (2004-06-14), EquationsAndReality (2005-02-21), Staying the Course (2005-07-11), Stokes Theorem (2006-01-27), Mathematics and Poetry (2008-11-09), Roads to Infinity (2010-10-06), One to Nine (2011-01-11), Greatest Inventions (2011-06-09), Music of the Primes (2011-08-11), Probability Problems (2013-02-09), Meta-Analogy (2013-03-20), ...) - ^z - 2016-01-03