"The initial motive for developing APL was to provide a tool for writing and teaching. Although APL has been exploited mostly in commercial programming, I continue to believe that its most important use remains to be exploited: as a simple, precise, executable notation for the teaching of a wide range of subjects."
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Source : "A Personal View of APL". IBM Systems Journal, 30 (4), 1991.
Source : "Microsoft's CEO Sent Out A Giant Manifesto To Employees About The Future Of The Company" by Jay Yarow, www.businessinsider.com. July 10, 2014.