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Discussion, therefore, is one of the motive powers of life, and, as such, is not to be deprecated.

— John Tyndall New Fragments (1892)

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More quotes by John Tyndall

Life is a wave, which in no two consecutive moments of its existence is composed of the same particles.

Fragments of Science, Vol. II (1879)

It is as fatal as it is cowardly to blink facts because they are not to our taste.

Fragments of Science, Vol. II (1879)

Faraday was not slow to anger, but he completely ruled his own spirit, and thus, though he took no cities, he captivated all hearts.

Faraday as a Discoverer (1868)

A point highly illustrative of the character of Faraday now comes into view.

Faraday as a Discoverer (1868)

The brightest flashes in the world of thought are incomplete until they have been proved to have their counterparts in the world of fact.

Fragments of Science, Vol. II (1879)

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Quote text and notes from Wikiquote: John Tyndall (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.