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— Henry Petroski"Engineers are not superhuman. They make mistakes in their assumptions, in their calculations, in their conclusions. That they make mistakes is forgivable; that they catch them is imperative. Thus it is the essence of modern engineering not only to be able to check one's own work but also to have one's work checked and to be able to check the work of others."
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Even originally well-defined pencils of cathode rays from the Sun cannot reach the Earth. For Birkeland's theories to be correct, the existance of such cathode rays is clearly presupposed to be necessary...and this assumption is untenable.
— Arthur Schuster
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I love that sometimes we need to go to the opposite side of the world to realize assumptions that we didn't even know we had and realize that the opposite may also be true.
— Derek Sivers
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