This is on thing I say to all students. That to be a really good mathematician, you have to be lazy. Ok, so you look at that, and you sort of say right, you could go straight in, integrate it, put the values in and get zero. Or you could step back for a minute and say, is there a trick I could use that gets the answer without having to do a lot of work? And the answer is yes, there is. So before you dive into something, sit back, look at the problem, and see, is there a clever way I could do this that’ll save me time?

– Philip Maini

Applies to other disciplines and circumstances. Step back and evaluate before diving in.