In any field find the strangest thing and then explore it. I didn't know it was impossible when I did it. Fortune favours the prepared mind. All Indians walk in single-file. At least the one I saw did.
All models are wrong, but some are useful.
What really matters is the name you succeed in imposing on facts, not the facts themselves. The word is not the thing. The map is not the territory. The symbol is not the thing symbolized. The purpose of models is not to fit the data but to sharpen the questions.