To command their professors of astronomy to refute their own observations is to command them not to see what they do see and not to understand what they do understand.
Interpretation
Galileo emphasizes the absurdity of denying observable evidence in the face of scientific inquiry.
In this quote, Galileo critiques the expectation placed on scholars to reject their own empirical observations to conform to established beliefs. He argues that true understanding comes from accepting what can be observed and known rather than adhering to dogma, highlighting the conflict between scientific evidence and traditional authority.
In practice
This quote can be used in a classroom setting to inspire students to trust their own observations in scientific experiments.
It has always seemed to me extreme presumptuousness on the part of those who want to make human ability the measure of what nature can and knows how to do, since, when one comes down to it, there is not one effect in nature, no matter how small, that even the most speculative minds can fully understand.
We must say that there are as many squares as there are numbers.
Science proceeds more by what it has learned to ignore than what it takes into account.
The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.
Philosophy is written in this grand book, the universe, which stands continually open to our gaze. But the book cannot be understood unless one first learns to comprehend the language and read the letters in which it is composed.
That sculpture is more admirable than painting for the reason that it contains relief and painting does not is completely false. ... Rather, how much more admirable the painting must be considered, if having no relief at all, it appears to have as much as sculpture!
Among physicists, I'm respected I hope.
The three-pound organ in your skull - with its pink consistency of Jell-o - is an alien kind of computational material. It is composed of miniaturized, self-configuring parts, and it vastly outstrips anything we've dreamt of building.
You may object that by speaking of simplicity and beauty I am introducing aesthetic criteria of truth, and I frankly admit that I am strongly attracted by the simplicity and beauty of mathematical schemes which nature presents us. You must have felt this too: the almost frightening simplicity and wholeness of the relationship, which nature suddenly spreads out before us.
Instead, in the absence of respect for human rights, science and its offspring technology have been used in this century as brutal instruments for oppression.
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.
Once humankind has been some place and found it_x000D_ entrancing, they always go back, I think in the history of the_x000D_ human race, the moon has been the first place we've gone to and said,_x000D_ 'OK, we don't need to go back there again.
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