A lot of people like to argue over thinking before doing or doing and not thinking. But why not do all three? And not necessarily in a specific order? We do all these things anyway right? But are we disciplined enough to make sure we do all three with all that we do and don't do? That's up to us as individuals. Also, keep this in mind. I think naturally the order matters only in certain applications of life. But again, that's for you to decide. Whatever works best for you.