Il saggiatore (The assayer) by Galileo Galilei (–) is the final and most significant work in the polemic regarding the characteristics of. This is Galileo’s argument from “The Assayer,” which I encountered in both my history survey of modern philosophy and in metaphysics. Galileo. Galileo Galilei; Il Saggiatore (The Assayer); Rome, This quietly polemical text puts the case for a pared-down scientific conception of matter and a.

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If their opinions and their voices have the power of calling into existence the things they name, then I beg them to do me the favor of naming a lot of old hardware I have about my house, -gold.

The Assayer

Surely not; they are all of lead. They sound different tones because they are of different lengths; and as to the material, this plays no part whatever in the formation of the sound.

Sarsi says that abundant arguments have been supplied by me for proving the roughness of the interior surface of the sky, since I will have it that the moon and other planets -bodies which are galllei celestial, and even more noble and perfect than the sky itself-are mountainous and rough. Tycho could not extricate himself from his own explanation of diversity in gakilei apparent motion of his comet; but now Sarsi expects my mind to be satisfied and set at rest by a little poetic flower that is not followed by any fruit at all.

Galileo, Selections from The Assayer

Perhaps the origin of two other senses lies in the fact [p. At first they tried to persuade me not to be upset by obstinate attacks, saying that in the end those would rebound upon their authors and merely render my own reasoning more lively and attractive, furnishing as they did clear proof that my essays were of an uncommon nature.

Inhowever, Kepler had published a book on comets in which he changed his previous notion and foreshadowed the modem view that the tails of comets consist of material driven from their bodies by the sun’s rays, and that their curvature arises from a composition of motions.

Many materials are such that in their decomposition the greater part of them passes over into additional tiny corpuscles, and this dissolution continues so long as these continue to meet with further matter capable of being so resolved. But I hold it to be silly to accept that proposition in the ordinary way, as if a stone or piece of iron or a stick must heat up when moved.


Yet though I believe the number of disciples of the best philosophical may be quite small, I do not conclude conversely that those opinions and doctrines are necessarily perfect which have few followers, for I know well enough that some men hold opinions so erroneous as to be rejected by everyone else.

Yet if true philosophers are like eagles they are not [unique] like the phoenix. On a lute, one string will do what many strings on a harp will do; for in fingering the lute the sound is drawn now from one part of the string and now from another, which is the same as lengthening and shortening it, and making of it different strings so far as relates to the production of sound.

Now four years after my Starry Messenger appeared, this same fellow in the habit of trying to ornament himself with other people’s works unblushingly made himself the author of the things I bad discovered and printed in that book.

And since nothing is lacking to us except being Babylonians, then being Babylonians is the cause of the hardening of eggs, and not friction of the air.

Guiducci has written, “Many stars completely invisible to the naked eye are made easily visible by the telescope; hence their magnification should be called fhe rather than nonexistent. Kepler reduced his reason to a diversity assayet refraction of the sun’s rays occurring in the material from which the comet’s tail is formed.

Works of Galileo Galilei, Part 3, Volume 15, Astronomy: The Assayer

That is an I said, and it has been told in several places by Guiducci. So to all this I answer briefly and simply that it appears to me Sarsi is showing himself to be just what be wants to prove me; that is, little cognizant of logic, for he takes as absolute that which was spoken relatively.

You, Sarsi, must show us that an interposed flame would not suffice to hide the stars. Along comes Mayr, and, appropriating my very observations, he prints on the title page of his book as well as in the opening pages that he had made his observations in the year 16og. After the theory was banned he utilized it to smuggle in the truth by pretending as here that Copernicus had spoken falsely in attributing a nonexistent motion to the earth.

Sound results from vibrations in the air. Will he say that this comes about because they are made of different materials?

The latter, I believe, are nothing more than names tje separated from living beings, just as tickling and titillation are nothing but names in the absence of such things as noses and armpits. I realize that often those who go about in masks are low persons who attempt by disguise to gain esteem among gentlemen and scholars, utilizing the dignity that attends nobility for some purpose of their own. I think he will not.


Galileo mistakenly believed that ggalilei are an optical illusion. Hence I think that tastes, odors, colors, and so on are no more than mere names so far as the object in which we place them is concerned, and that they reside only in he consciousness.

Galileo’s The Assayer | Here She Be — The Battlements

But let us see how conclusive they are. Hence if the living creature were removed, all these qualities would be wiped away and annihilated.

If you would only tell me what this “whatever else” is, I should endeavor to provide it. Without the senses as our guides, reason or imagination unaided would probably never arrive at qualities like these.

For an answer to this let him put down whatever it is that he would reply to a man who argued that the surface of the ocean should be bony and scaly, since tge fish which inhabit it are.

Thus they might perceive and predict this wind from a distance. Should I not have been showing a wish to remain incognito?

But I suppose that when galjlei failed to behold a melting of lead’ balls or even the cooking of eggs under such conditions you would still fail to give in; you would say that this “whatever else conduces to the effect” was lacking. Tarde had visited Galileo in and had discussed sunspots with galili personally, yet in his book he completely ignored Galileo’s conclusions and appropriated propriated the earlier mistaken ideas of Scheiner.

But since we have imposed upon them special names, distinct from those of the other and real qualities mentioned previously, we wish to believe that they really exist as actually different from those.

Kepler tried to give a reason for the tail being really curved; Guiducci supposes it to be really straight, and seeks a cause for its bent appearance. Perhaps Sarsi believes that all the host of good philosophers may be enclosed within four walls. Now let us go on to examine the arrows in flight and the [p.

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