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And so I might go on pointing out the general character of the work done by different classes of scientific men, but this would be tedious. We should only have brought home to us in each case the fact that, no matter what the science may be with which we are dealing, its disciples are simply trying to learn all they can in the field in which they are working. As I began with a reference to astronomy, let me close with a reference to chemistry. Astronomy has to deal with the largest bodies and the greatest distances of the universe; chemistry, on the other hand, has to deal with the smallest particles and the shortest distances of the universe. Astronomy is the science of the infinitely great; chemistry is the science of the infinitely little. The chemist wants to know what things are made of and, in order to find this out, he has to push his work to the smallest particles of matter. Then he comes face to face with facts that lead him to the belief that the smallest particles he can weigh by the aid of the most delicate balance, and the smallest particles he can see with the aid of the most powerful microscope, are immense as compared with those of which he has good reason to believe the various kinds of matter to be made up. It is for this reason that I say that chemistry is the science of the infinitely little.
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Thus I have tried to show what science is and what it is not.
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Notes
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1705036373
pass through, ask; put the question.
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1705036375
terribly, very.
1705036376
1705036377
attribute, essential or necessary property or characteristic.
1705036378
1705036379
prevailing, current; commonly or generally accepted.
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1705036381
baseball, the American national game, with nine players to a side or team.
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1705036383
whist, a card game for four players （those opposite being partners）, played with a pack of 52 cards.
1705036384
1705036385
technical expression, the term that is especially appropriate to the particular art, science, business, profession, etc.
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1705036387
the Evll One, the Devil; Satan.
1705036388
1705036389
undermining religion, used figuratively to mean subverting or weakening insidiously or secretly the influence of religion; ruining in an underhanded way the good influence of religion.
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1705036391
astounding, amazing; wonderful; surprising.
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1705036393
modus vivendi, the Latin expression meaning a mode or manner of living; hence, a temporary arrangement of affairs until disputed matters could be settled.
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1705036395
clash of arms, struggle; conflicting contention; argument.
1705036396
1705036397
trolley car, an electric car, called trolley car because of the overhead device （a grooved wheel at the end of a pole, pressed upward in rolling contact with the overhead wire; or a wire bow in sliding contact） for taking off current in electric traction.
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1705036399
pass over it lightly, barely mention the matter here; do not take the subject up fully at this point of the talk.
1705036400
1705036401
ascertained, learned for a certainty by trial, examination, or experiment; made certain to the mind.
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systematized, arranged methodically according to a difinite plan.
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1705036405
formulated, reduced down to, expressed in, a formula; set forth systematically.
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1705036407
phenomena, things that are perceived or that appear; occurrences. The singular of this word is phenomenon .
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1705036409
functions, the activities that are proper to living tissues.
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deductions, explicit knowledge, reasoned from the general to the particular or from the implicit to the explicit, as in a geometrical demonstration.
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1705036413
precepts, instructions or commands intended as rules of action or conduct.
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astronomer, a person who is interested in the science of the heavenly bodies, the science of astronomy.
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