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— Arthur Schuster"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."
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There are some flaws in the assumptions made for democracy. It is assumed that all men and women are equal or should be equal. Hence, one-man-one-vote. But is equality realistic? If it is not, to insist on equality must lead to regression.
— Lee Kuan Yew
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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.
— Henry Petroski
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