There are a thousand hacking at the branches of evil to one who is striking at the root.
I know of no more encouraging fact than the unquestionable ability of man to elevate his life by conscious endeavor.
What lies before us and what lies behind us are small matters compared to what lies within us. And when we bring what is within out into the world, miracles happen.
No human being, past the thoughtless age of boyhood, will wantonly murder any creature which holds its life by the same tenure that he does.
True friendship can afford true knowledge. It does not depend on darkness and ignorance.
Knowledge does not come to us in details, but in flashes of light from heaven.
Each thought that is welcomed and recorded is a nest egg, by the side of which more will be laid.
I should say that the useful results of science had accumulated, but that there had been no accumulation of knowledge, strictly speaking, for posterity; for knowledge is to be acquired only by a corresponding experience. How can we know what we are told merely? Each man can interpret another's experience only by his own.
The knowledge of an unlearned man is living and luxuriant like a forest, but covered with mosses and lichens and for the most part inaccessible and going to waste; the knowledge of the man of science is like timber collected in yards for public works, which still supports a green sprout here and there, but even this is liable to dry rot.
He who is only a traveler learns things at second-hand and by the halves, and is poor authority. We are most interested when science reports what those men already know practically or instinctively, for that alone is a true humanity, or account of human experience.
The process of discovery is very simple. An unwearied and systematic application of known laws to nature, causes the unknown to reveal themselves. Almost any mode of observation will be successful at last, for what is most wanted is method.
All perception of truth is the detection of an analogy.
We hear and apprehend only what we already half know.
Men do not fail commonly for want of knowledge, but for want of prudence to give wisdom the preference.
Such is always the pursuit of knowledge. The celestial fruits, the golden apples of the Hesperides, are ever guarded by a hundred-headed dragon which never sleeps, so that it is an Herculean labor to pluck them.
The intellect is a cleaver; it discerns and rifts its way into the secrets of things.
Since all things are good, men fail at last to distinguish which is the bane and which the antidote.
What we need to know in any case is very simple.
There is a chasm between knowledge and ignorance which the arches of science can never span.
Always the laws of light are the same, but the modes and degrees of seeing vary.
Long enough I had heard of irrelevant things; now at length I was glad to make acquaintance with the light that dwells in rotten wood. Where is all your knowledge gone to? It evaporates completely, for it has no depth.
Give me a sentence which no intelligence can understand. There must be a kind of life and palpitation to it, and under its words akind of blood must circulate forever.
The highest that we can attain to is not Knowledge, but Sympathy with Intelligence.
There are other letters for the child to learn than those which Cadmus invented. The Spaniards have a good term to express this wild and dusky knolwedge, Grammatica parda, tawny grammar, a kind of mother-wit derived from that same leopard to which I have referred.
While England endeavors to cure the potato-rot, will not any endeavor to cure the brain-rot, which prevails so much more widely and fatally?
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