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It has been asserted that metaphysical speculation is a thing of the past and that physical science has extirpated it. The discussion of the categories of existence, however, does not appear to be in danger of coming to an end in our time, and the exercise of speculation continues as fascinating to every fresh mind as it was in the days of Thales.

— James Clerk Maxwell The Scientific Papers of James Clerk Maxwell (1890)

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More quotes by James Clerk Maxwell

I hope that you will not tell me you have little fault to find with me, without finding that little and communicating it.

The Life of James Clerk Maxwell (1882)

In every branch of knowledge the progress is proportional to the amount of facts on which to build, and therefore to the facility of obtaining data.

The Life of James Clerk Maxwell (1882)

Heat may be generated and destroyed by certain processes, and this shows that heat is not a substance.

Theory of Heat (1871)

But we have no right to think thus of the unsearchable riches of creation, or of the untried fertility of those fresh minds into which these riches will continue to be poured.

To prove the laws of motion by the law of gravitation would be an inversion of scientific order. We might as well prove the law of addition of numbers by the differential calculus.

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