> It’s more important to get stuff done than to make it go fast. This is not a real absolute. It is only valid when what you have to run will not benefit a lot

> It’s more important to get stuff done than to make it go fast. This is not a real absolute. It is only valid when what you have to run will not benefit a lot from performance or suffer a lot from lack of it. The real guidance you can have in these matters is: how many times is my code going to run per second? Some programs are written to be run once a day, others 10000000 times in a second. The first ones should be written in the language you're most productive in, the second ones in the fastest possible language.