Do not imagine that mathematics is hard and crabbed, and repulsive to common sense. It is merely the etherealization of common sense.
Lord KelvinRead
I need scarcely say that the beginning and maintenance of life on earth is absolutely and infinitely beyond the range of all sound speculation in dynamical science. The only contribution of dynamics to theoretical biology is absolute negation of automatic commencement or automatic maintenance of life.
Interpretation
The origins and sustenance of life cannot be adequately explained by dynamics alone.
Lord Kelvin's quote emphasizes the limitations of physical sciences, particularly dynamics, in explaining how life originates and continues on Earth. He asserts that true understanding of life's beginnings and maintenance goes beyond what can be inferred or mechanistically deduced from scientific principles, highlighting the complexity and perhaps the mystery surrounding biological existence.
In practice
In a discussion about the challenges of explaining the origins of life in a science class.
Do not imagine that mathematics is hard and crabbed, and repulsive to common sense. It is merely the etherealization of common sense.
We only know God in His works, but we are forced by science to admit and to believe with absolute confidence in a Directive Power-in an influence other than physical, or dynamical, or electrical forces.
In science there is only physics; all the rest is stamp collecting.
There is nothing new to be discovered in physics now. All that remains is more and more precise measurement.
Let nobody be afraid of true freedom of thought. Let us be free in thought and criticism; but, with freedom, we are bound to come to the conclusion that science is not antagonistic to religion, but a help to it.
Science is bound, by the everlasting vow of honour, to face fearlessly every problem which can be fairly presented to it.
...there is simply nothing so important to a people and its government as how many of them there are, whether their number is growing or declining, how they are distributed as between different ages, sexes, and different social classes and racial and ethnic groups, and again, which way these numbers are moving.
Science is the greatest of all adventure stories, one that's been unfolding for thousands of years as we have sought to understand ourselves and our surroundings.
The stress response is incredibly ancient evolutionarily. Fish, birds and reptiles secrete the same stress hormones we do, yet their metabolism doesn't get messed up the way it does in people and other primates.
You'll often hear the phrase "science doesn't know everything." Well, of course it doesn't know everything. But just because science doesn't know everything doesn't mean that it knows nothing.
Why, if species have descended from other species by insensibly fine gradations, do we not everywhere see innumerable transitional forms.
Every work of science great enough to be well remembered for a few generations affords some exemplification of the defective state of the art of reasoning of the time when it was written; and each chief step in science has been a lesson in logic.
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