Los mensajes son la forma en que los objetos se comunican entre sí y en que nosotros, los humanos, nos comunicamos con el sistema de cómputo. Hay tres tipos de mensajes: unary (unarios), binary (binary) y keyword.

Si queremos modelar objetos complejos, tenemos que tener cierta familiaridad con los objetos preexistentes

# And this is the bytecode benchmark translated from Squeak

TR: In retrospect, in designing C++, wasn’t your decision to trade off programmer efficiency, security, and software reliability for run time performance a fundamental mistake?BS: Well, I don’t think I made such a trade-off. I want elegant and efficient code. Sometimes I get it. These dichotomies (between efficiency versus correctness, efficiency versus programmer time, efficiency versus high-level, et cetera.) are bogus.What I did do was to design C++ as first of all a systems programming language: I wanted to be able to write device drivers, embedded systems, and other code that needed to use hardware directly. Next, I wanted C++ to be a good language for designing tools. That required flexibility and performance, but also the ability to express elegant interfaces.