I have not been able to discover the cause of those properties of gravity from phenomena, and I frame no hypotheses; for whatever is not deduced from the phenomena is to be called a hypothesis, and hypotheses, whether metaphysical or physical, whether of occult qualities or mechanical, have no place in experimental philosophy.
Interpretation
Newton emphasizes the importance of empirical evidence in understanding gravity, rejecting unproven theories.
In this quote, Isaac Newton asserts that true knowledge must be derived from observable phenomena, specifically in the context of understanding gravity. He critiques the reliance on hypotheses that are not grounded in experimental evidence, highlighting a foundational principle of scientific inquiry that prioritizes empirical observation over speculative or metaphysical explanations. His stance reinforces the need for a rigorous methodological approach in the pursuit of scientific knowledge.
In practice
In a science class discussing the principles of gravity and experimental methods.
The best and safest way of philosophising seems to be, first to enquire diligently into the properties of things, and to establish those properties by experiences [experiments] and then to proceed slowly to hypotheses for the explanation of them. For hypotheses should be employed only in explaining the properties of things, but not assumed in determining them; unless so far as they may furnish experiments.
Plato is my friend, Aristotle is my friend, but my greatest friend is truth.
His epitaph: Who, by vigor of mind almost divine, the motions and figures of the planets, the paths of comets, and the tides of the seas first demonstrated.
And from true lordship it follows that the true God is living, intelligent, and powerful; from the other perfections, that he is supreme, or supremely perfect. He is eternal and infinite, omnipotent and omniscient; that is, he endures from eternity to eternity; and he is present from infinity to infinity; he rules all things, and he knows all things that happen or can happen.
My Design in this Book is not to explain the Properties of Light by Hypotheses, but to propose and prove them by Reason and Experiments: In order to which, I shall premise the following Definitions and Axioms.
It is the weight, not numbers of experiments that is to be regarded.
I think China knows that in the early stages of Covid, it didn't do what it needed to do, which was to, in real time, give access to international experts, in real time to share information, in real time to provide real transparency.
I do not want to drive across a bridge designed by an engineer who believed the numbers in structural stress models are relative truths.
How lucky we are to live in this time / the first moment in human history / when we are in fact visiting other worlds
If a sect does officially insist that its structure of belief demands that evolution be false, then no compromise is possible. An honest and competent biology teacher can only conclude that the sect's beliefs are wrong and that its religion is a false one.
Today, nothing is unusual about a scientific discovery's being followed soon after by a technical application: The discovery of electrons led to electronics; fission led to nuclear energy. But before the 1880's, science played almost no role in the advances of technology. For example, James Watt developed the first efficient steam engine long before science established the equivalence between mechanical heat and energy.
The thing I'm most interested in is the nervous system. How do brains grow? How do genes build complicated nervous systems?
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