"At some point, we all have to decide how we are going to fail: by not going far enough, or by going too far. The only alternative for the most successful (maybe even the most fulfilled) people is the latter."

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Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don't conform to our preconceptions. It counsels us to carry alternative hypotheses in our heads and see which ones best match the facts. It urges on us a fine balance between no-holds-barred openness to new ideas, however heretical, and the most rigorous skeptical scrutiny of everything - new ideas and established wisdom.

— Carl Sagan