The experimental investigation by which Ampere established the law of the mechanical action between electric currents is one of the most brilliant achievements in science. The whole theory and experiment, seems as if it had leaped, full grown and full armed, from the brain of the 'Newton of Electricity'. It is perfect in form, and unassailable in accuracy, and it is summed up in a formula from which all the phenomena may be deduced, and which must always remain the cardinal formula of electro-dynamics.
Jonathan Safran Foer
My impression is that staying together as a couple does not correspond to the challenges themselves, but whether the very idea of breaking up is an option on the table. If it is, then some people take it. If it's not, then they will keep working at it. You must know people who were terribly suited who make it work. And there are couples who seem perfectly suited that break up. It's a mystery to everyone.
