I've always said that language development should follow library development. Think about what your standard libraries are going to do, then write the language

I've always said that language development should follow library development. Think about what your standard libraries are going to do, then write the language for doing those tasks consistently and elegantly. I'm always disappointed when I see a language with syntax and semantics but no real library. You have no way of knowing if it is a good design. It's like buying building parts out of a catalogue and hoping the architect will be able to build you something great with what you've ordered.