The Purpose of Thinking

If you have a problem and you think it through and you lay out a solution, and then you act out the solution, then you don't have to have the problem. So that's why you write. And so i tell my students it's a very important thing to know, and all of you should know this when you're writing, or when or thinking. It's like, well, first of all, don't waste time thinking about things that aren't problems. Because how much time do you have?