Henry David Thoreau Science Quotations

If a man walks in the woods for love of them half of each day, he is in danger of being regarded as a loafer. But if he spends his days as a speculator, shearing off those woods and making the earth bald before her time, he is deemed an industrious and enterprising citizen.

The universe is wider than our views of it.

Men are probably nearer the central truth in their superstitions than in their science

With all your science can you tell how it is, and whence it is, that Light comes into the soul?

The next day the Indian told me their name for this light,--artoosoq',--and on my inquiring concerning the will-o'-the-wisp, and the like phenomena, he said that his "folks" sometimes saw fires passing along at various heights, even as high as the trees, and making a noise. I was prepared after this to hear of the most startling and unimagined phenomena, witnessed by "his folks"; they are abroad at all hours and seasons in scenes so unfrequented by white men. Nature must have made a thousand revelations to them which are still secrets to us.

It will be seen that we contemplate a time when man's will shall be law to the physical world, and he shall no longer be deterredby such abstractions as time and space, height and depth, weight and hardness, but shall indeed be the lord of creation.

Let us consider under what disadvantages Science has hitherto labored before we pronounce thus confidently on her progress.

Linnæus, setting out for Lapland, surveys his "comb" and "spare shirt," "leathern breeches" and "gauze cap to keep off gnats," with as much complacency as Bonaparte a park of artillery for the Russian campaign. The quiet bravery of the man is admirable.

Almost any mode of observation will be successful at last, for what is most wanted is method.

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.

There is a chasm between knowledge and ignorance which the arches of science can never span.

What an admirable training is science for the more active warfare of life! Indeed, the unchallenged bravery which these studies imply, is far more impressive than the trumpeted valor of the warrior.

If all were as it seems, and men made the elements their servants for noble ends!

He who is conversant with the supernal powers will not worship these inferior deities of the wind, waves, tide, and sunshine. Butwe would not disparage the importance of such calculations as we have described. They are truths in physics because they are true in ethics.

The science of Humboldt is one thing, poetry is another thing. The poet to-day, notwithstanding all the discoveries of science, and the accumulated learning of mankind, enjoys no advantage over Homer.

A man receives only what he is ready to receive... The phenomenon or fact that cannot in any wise be linked with the rest of what he has observed, he does not observe.

You can hardly convince a man of error in a life-time, but must content yourself with the reflection that the progress of science is slow. If he is not convinced, his grand-children may be. The geologists tell us that it took one hundred years to prove that fossils are organic, and one hundred and fifty more, to prove that they are not to be referred to the Noachian deluge.

Our science, so called, is always more barren and mixed with error than our sympathies.

If words were invented to conceal thought, newspapers are a great improvement of a bad invention

When our life ceases to be inward and private, conversation degenerates into mere gossip.

What are the libraries of science but files of newspapers?

The fact which interests us most is the life of the naturalist. The purest science is still biographical. Nothing will dignify and elevate science while it is sundered so wholly from the moral life of its devotee.

Fishing has been styled 'a contemplative man's recreation,' ... and science is only a more contemplative man's recreation.