I don't have any particular recipe [for developing new proofs] ... It is the reason why doing research is challenging as well as attractive. It's like being lost in a jungle and trying to use all the knowledge that you can gather to come up with some new tricks, and with some luck you might find a way out.
They throw their shadows before them who carry their lantern on their back.
Sometimes the most important experiments are the ones that fail, because they teach us what doesn't work.