None are so old as those who have outlived enthusiasm.
Henry David ThoreauRead
Even the facts of science may dust the mind by their dryness, unless they are ... rendered fertile by the dews of fresh and living truth. Knowledge does not come to us by details, but in flashes of light from heaven.
Interpretation
Scientific facts alone can be dry and uninspiring unless enlivened by deeper truths; understanding comes in moments of insight.
In this quote, Thoreau emphasizes the importance of integrating fresh and vibrant truths into scientific knowledge to make it engaging and meaningful. He suggests that mere details of science can be tedious, and real knowledge often arrives in sudden, enlightening moments that illuminate our understanding.
In practice
This quote can be used in a science class to illustrate the importance of deeper understanding in learning.
None are so old as those who have outlived enthusiasm.
Through want of enterprise and faith men are where they are, buying and selling and spending their lives like servants.
An early-morning walk is a blessing for the whole day.
Have no mean hours, but be grateful for every hour, and accept what it brings. The reality will make any sincere record respectable.
As every season seems best to us in its turn, so the coming in of spring is like the creation of Cosmos out of Chaos and the realization of the Golden Age.
That grand old poem called Winter
If global warming is not contained, the West will face a choice of a refugee crisis of unimaginable proportions, or direct complicity in crimes against humanity.
The trouble is that the hockey stick graph become an icon and deniers reckoned if they could smash the icon, the whole concept of global warming would be destroyed with it.
Dissent is the native activity of the scientist, and it has got him into a good deal of trouble in the last years. But if that is cut off, what is left will not be a scientist. And I doubt whether it will be a man.
It {Darwin's theory of evolution] was a concept of such stunning simplicity, but it gave rise, naturally, to all of the infinite and baffling complexity of life. The awe it inspired in me made the awe that people talk about in respect of religious experience seem, frankly, silly beside it. I'd take the awe of understanding over the awe of ignorance any day.
'Conservation' (the conservation law) means this ... that there is a number, which you can calculate, at one moment-and as nature undergoes its multitude of changes, this number doesn't change. That is, if you calculate again, this quantity, it'll be the same as it was before. An example is the conservation of energy: there's a quantity that you can calculate according to a certain rule, and it comes out the same answer after, no matter what happens, happens.
Modern science should indeed arouse in all of us a humility before the immensity of the unexplored and a tolerance for crazy hypotheses.
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