That man, I think, has had a liberal education, who has been so trained in youth that his body is the ready servant of his will.
No delusion is greater than the notion that method and industry can make up for lack of mother-wit, either in science or in practical life.
Living things have no inertia, and tend to no equilibrium.
Deduction, which takes us from the general proposition to facts again-teaches us, if I may so say, to anticipate from the ticket what is inside the bundle.
Mathematics may be compared to a mill of exquisite workmanship, which grinds you stuff of any degree of fineness; but, nevertheless, what you get out depends upon what you put in; and as the grandest mill in the world will not extract wheat-flour from peascods, so pages of formulae will not get a definite result out of loose data.
It may be quite true that some negroes are better than some white men; but no rational man, cognisant of the facts, believes that the average negro is the equal, still less the superior, of the average white man. And, if this be true, it is simply incredible that, when all his disabilities are removed, and our prognathous relative has a fair field and no favour, as well as no oppressor, he will be able to compete successfully with his bigger-brained and smaller-jawed rival, in a contest which is to be carried on by thoughts and not by bites.
As for your doctrines I am prepared to go to the Stake if requisite ... I trust you will not allow yourself to be in any way disgusted or annoyed by the considerable abuse & misrepresentation which unless I greatly mistake is in store for you... And as to the curs which will bark and yelp - you must recollect that some of your friends at any rate are endowed with an amount of combativeness which (though you have often & justly rebuked it) may stand you in good stead - I am sharpening up my claws and beak in readiness.
The only objections that have occurred to me are, 1st that you have loaded yourself with an unnecessary difficulty in adopting Natura non facit saltum so unreservedly. . . . And 2nd, it is not clear to me why, if continual physical conditions are of so little moment as you suppose, variation should occur at all. However, I must read the book two or three times more before I presume to begin picking holes.
We live in the hope and faith that, by the advance of molecular physics, we shall by-and-by be able to see our way as clearly from the constituents of water to the properties of water, as we are now able to deduce the operations of a watch from the form of its parts and the manner in which they are put together.
The doctrine of transmigration was a means of constructing a plausible vindication of the ways of the cosmos to man; none but very hasty thinkers will reject it on the grounds of inherent absurdity.
The mathematician starts with a few propositions, the proof of which is so obvious that they are called self-evident, and the rest of his work consists of subtle deductions from them. The teaching of languages, at any rate as ordinarily practiced, is of the same general nature authority and tradition furnish the data, and the mental operations are deductive.
Genius, as an explosive power, beats gunpowder hollow.
Mathematics may be compared to a mill of exquisite workmanship, which grinds your stuff to any degree of fineness.
Cherish [Science], venerate her, follow her methods faithfully ... and the future of this people will be greater than the past.
No one who has lived in the world as long as you & I have, can entertain the pious delusion that it is engineered upon principles of benevolence... the cosmos remains always beautiful and profoundly interesting in every corner-and if I had as many lives as a cat I would leave no corner unexplored.
Education is the instruction of the intellect in the laws of Nature.
There is no greater mistake than the hasty conclusion that opinions are worthless because they are badly argued.
The Bible has been the Magna Charta of the poor and of the oppressed.
Agnosticism simply means that a man shall not say that he knows or believes that for which he has no grounds for professing to believe.
It is wrong for a man to say that he is certain of the objective truth of any proposition unless he can produce evidence which logically justifies that certainty.
The only question which any wise man can ask himself, and which any honest man will ask himself, is whether a doctrine is true or false.
The most considerable difference I note among men is not in their readiness to fall into error, but in their readiness to acknowledge these inevitable lapses.
My reflection, when I first made myself master of the central idea of the 'Origin', was, 'How extremely stupid not to have thought of that!'
It ought not to be unpleasant to say that which one honestly believes or disbelieves. That it so constantly is painful to do so, is quite enough obstacle to the progress of mankind in that most valuable of all qualities, honesty of word or of deed.
Some experience of popular lecturing had convinced me that the necessity of making things plain to uninstructed people, was one of the very best means of clearing up the obscure corners in one's own mind.
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