What science can there be more noble, more excellent, more useful for men, more admirably high and demonstrative, than this of mathematics?
Benjamin FranklinWhen confronted with two courses of action I jot down on a piece of paper all the arguments in favor of each one, then on the opposite side I write the arguments against each one. Then by weighing the arguments pro and con and cancelling them out, one against the other, I take the course indicated by what remains.
Benjamin Franklin