You may not believe it, but there are people who go through life with very little friction or distress. They dress well, eat well, sleep well. They are contented with their family life. They have moments of grief but all in all they are undisturbed and often feel very good. And when they die it is an easy death, usually in their sleep. I am not one of them. Oh no, I am not one of them, i am not even near to being one of them. They are THERE and I am HERE". (The Aliens by Charles Bukowski)

It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.
Richard Feynman
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