A System of Logic, Ratiocinative and Inductive: Being a Connected View of the Principles of Evidence and the Methods of Scientific Investigation, Volume 2Longmans, Green, and Company, 1865 |
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Common terms and phrases
according affirm analogy antecedent applied arising ascer ascertained assertion average balls believe bodies casual chance characters circumstances coincidence collocation colour common complete induction conception conclusion connexion connotation considered constant cause crows deduction degree depends derivative law distinct doctrine doctrine of chances earth effect ellipse empirical law equal event evidence example exist experience fact frequency ground happen hypothesis induction inference inquiry kind knowledge known laws language law of causation law of nature limits luminiferous ether manner meaning merely Method Method of Agreement Method of Difference mind mode motion objects observed occur particular pheno phenomena phenomenon planet possible precise principle probability produced proportion proposition proved quantity question ratiocination reason recognised resemblance respecting result rience scientific solar system species substances succession supposed supposition term theory things throws tion true truth ultimate laws ultimate properties universal universal proposition vera causa Whewell words
Popular passages
Page 534 - The sun illuminates the hills, while it is still below the horizon ; and truth is discovered by the highest minds a little before it becomes manifest to the multitude. This is the extent of their superiority. They are the first to catch and reflect a light, which, without their assistance, must, in a short time, be visible to those who lie far beneath them.
Page 143 - ... that the squares of the periodic times of the planets are proportional to the cubes of their mean distances from the sun.
Page 316 - That gravity should be innate, inherent and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else by and through which their action and force may be conveyed from one to another, is to me so great an absurdity, that I believe no man who has in philosophical matters a competent faculty of thinking can ever fall into it.
Page 492 - It makes entire abstraction of every other human passion or motive; except those which may be regarded as perpetually antagonizing principles to the desire of wealth, namely, aversion to labour, and desire of the present enjoyment of costly indulgences.
Page 367 - First, as there could be in natural bodies no motion of any thing, unless there were some first which moved all things, and continued unmoveable ; even so in politic societies there must be some unpunishable, or else no man shall suffer punishment...
Page 416 - Necessity is simply this: that, given the motives which are present to an individual's mind, and given likewise the character and disposition of the individual, the manner in which he will act might be unerringly inferred: that if we knew the person thoroughly, and knew all the inducements which are acting upon him, we could foretell his conduct with as much certainty as we can predict any physical event.
Page 429 - In other words, the science of Human Nature may be said to exist, in proportion as the approximate truths, which compose a practical knowledge of mankind, can be exhibited as corollaries from the universal laws of human nature on which they rest...
Page 464 - The laws of the phenomena of society are, and can be. nothing but the laws of the actions and passions of human beings united together in the social state. Men, however, in a state of society are still men; their actions and passions are obedient to the laws of individual human nature.
Page 492 - Political Economy considers mankind as occupied solely in acquiring and consuming wealth ; and aims at showing what is the course of action into which mankind, living in a state of society, would be impelled, if that motive...
Page 464 - Human beings in society have no properties but those which are derived from, and may be resolved into, the laws of the nature of individual man.