Mike Krieger

You can't start a product simply by building it. You have to know why you're building it, and you might go down the wrong rabbit hole, waste time, and confuse things. Spending long afternoons with a sketchbook or talking through your ideas with other people can save a year in software development later on.

Though builders may build, in the main they follow the plans of architects. Teachers teach, but they must have a text. Politicians govern, but only upon the flow of commentary that raises them up or casts them down.