"Learn at least a half dozen programming languages. Include one language that supports class abstractions (like Java or C++), one that supports functional abstraction (like Lisp or ML), one that supports syntactic abstraction (like Lisp)..."
Why learning Java or C++ if you are going to learn Lisp anyway? All Lisps I know of have their object system. If you prefer following the mature route, then Common Lisp is your best choice.
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"Learn at least a half dozen programming languages. Include one language that supports class abstractions (like Java or C++), one that supports functional abstraction (like Lisp or ML), one that supports syntactic abstraction (like Lisp)..."
Why learning Java or C++ if you are going to learn Lisp anyway? All Lisps I know of have their object system. If you prefer following the mature route, then Common Lisp is your best choice.
I think Assembly is missing from Norvig's list.
And Eiffel (Design by Contract and strongly-typed OO).