Sam Rayburn

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.

I'm not saying being a comedian is brain surgery, but it is definitely - it's like being a carpenter. You learn how to make tables and chairs. You have to have the right tools, and you have to know how to put the thing together, right?