а Алан Кей думал по-другому
"I invented the term Object-Oriented and I can tell you I did not have C++ in mind."
The big idea is "messaging" -- that is what the kernal of Smalltalk/Squeak is all about (and it's something that was never quite completed in our Xerox PARC phase). The Japanese have a small word -- ma -- for "that which is in between" -- perhaps the nearest English equivalent is "interstitial".
http://www.c2.com/cgi/wiki?AlanKayOnObjects