Succinctness is Power

And even more from Paul Graham:

The true test of a [programming] language is how well you can discover and solve new problems, not how well you can use it to solve a problem someone else has already formulated.

...

Ultimately, I think you have to go with your gut. What does it feel like to program in the language? I think the way to find (or design) the best language is to become hypersensitive to how well a language lets you think, then choose/design the language that feels best.

Aha! You know, I think I'm starting to see why Ruby has become so popular with really good programmers/hackers. Hmm....