"A wish has been defined as a 'goal with no energy behind it.' Hope is not a strategy."

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Of course, the laws of science contain no matter and have no energy either and therefore do not exist except in people's minds. It's best to be completely scientific about the whole thing and refuse to believe in either ghosts or the laws of science. That way you're safe. That doesn't leave you very much to believe in, but that's scientific too.

— Robert M. Pirsig