We can speculate that 
Gottfried Wilhelm von Leibniz
[http://wikipedia.org/Leibniz]
(1646-1716), who largely invented our modern 
notions of binary arithmetic, feedback, and symbolic
computation, would have liked [Tcl]
if only in appreciation for [tclsh]'s provision
of an interactive propositional calculator
[http://en.wikipedia.org/wiki/Leibniz#Calculator], 
as well as the language's [Unicode]-savvy
adeptness with human scripts.

Leibniz' current reputation in the Anglo world is
less than he deserves, testimony to Newton's
powers of vilification.

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[[Maybe mention the connection with monads.]]

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[Category Person]