"I lay no claim to advancing scientific data other than advancing flying knowledge. I can only say that I do it because I want to."

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If you care deeply about a cause and you are then engaged on behalf of that cause in an activity that makes you feel very good and very brave and you're really in solidarity with all your friends, and you're enjoying it, you're probably not advancing the cause very much, because you're spending all your time with people you agree with cheering each other on and not engaging.

— Barney Frank