A Quote by Charles Lyell

Amidst the vicissitudes of the earth's surface, species cannot be immortal, but must perish, one after another, like the individuals which compose them. There is no possibility of escaping from this conclusion.
If the human species, or indeed any part of the biosphere, is to continue to survive, it must eventually leave the Earth and colonize space. For the simple fact of the matter is, the planet Earth is doomed... Let us follow many environmentalists and regard the Earth as Gaia, the mother of all life (which indeed she is). Gaia, like all mothers, is not immortal. She is going to die. But her line of descent might be immortal. . . . Gaia's children might never die out-provided they move into space. The Earth should be regarded as the womb of life-but one cannot remain in the womb forever.
Mr. Darwin refers to the multitude of the individual of every species, which, from one cause or another, perish either before, or soon after attaining maturity.
Those who have arrived at any very eminent degree of excellence in the practice of an art or profession have commonly been actuated by a species of enthusiasm in their pursuit of it. They have kept one object in view amidst all the vicissitudes of time and torture.
For all we know, the aliens have already done this and unwittingly concluded that there was no intelligent life on Earth. They would now be looking elsewhere. A more humbling possibility would be if aliens had become aware of the technologically proficient species that now inhabits Earth, yet they had drawn the same conclusion.
If we consider the superiority of the human species, the size of its brain, its powers of thinking, language and organization, we can say this: were there the slightest possibility that another rival or superior species might appear, on earth or elsewhere, man would use every means at his disposal to destroy it.
Humility consists of knowing that in this world the whole soul, not only what we term the ego in its totality, but also the supernatural part of the soul, which is God present in it, is subject to time and to the vicissitudes of change. There must be absolutely acceptance of the possibility that everything material in us should be destroyed. But we must simultaneously accept and repudiate the possibility that the supernatural part of the soul should disappear.
...our species is one, and each of the individuals who compose it are entitled to equal moral consideration.
If an organised body is not in the situation and circumstances best adapted to its sustenance and propagation, then, in conceiving an indefinite variety among the individuals of that species, we must be assured, that, on the one hand, those which depart most from the best adapted constitution, will be most liable to perish, while, on the other hand, those organised bodies, which most approach to the best constitution for the present circumstances, will be best adapted to continue, in preserving themselves and multiplying the individuals of their race.
Masonry is too great an institution to have been made in a day, much less by a few men, but was a slow evolution through long time, unfolding its beauty as it grew. Indeed, it was like one of its own cathedrals which one generation of builders wrought and vanished, and another followed, until, amidst vicissitudes of time and change, of decline and revival, the order itself became a temple of Freedom and Fraternity.
Nothing which consists of corporeal matter is absolutely light, but that is comparatively lighter which is rarer, either by its own nature, or by accidental heat. And it is not to be thought that light bodies are escaping to the surface of the universe while they are carried upwards, or that they are not attracted by the earth. They are attracted, but in a less degree, and so are driven outwards by the heavy bodies; which being done, they stop, and are kept by the earth in their own place.
For a long time, science has gone in the direction of sort of putting people in their place. We learned that the sun doesn't revolve around the Earth, the Earth revolves around the sun; we learned that we're just another species, evolved, like all other species, so we're just another animal, really.
If there is a species which is more maltreated than children, then it must be their toys, which they handle in an incredibly off-hand manner. Toys are thus the end point in that long chain in which all the conditions of despotic high-handedness are in play which enchain beings one to another, from one species to another --cruel divinities to their sacrificial victims, from masters to slaves, from adults to children, and from children to their objects.
My encounter with another world and another culture and the beginnings of an attachment to them had set up an irritation, barely perceptible but incurable-rather like unrequited love, like a symptom of the hopelessness of trying to grasp what is boundless, or unite what cannot be joined; a reminder of how finite, how curtailed, our experience on earth must be
I'd bet almost anything that life from another planet, if formed independently from life on Earth, would be more different from all species of Earth life than any two species of Earth life are from each other.
The surface of the earth is not simply a stage on which the thousands of present and past inhabitants played their parts in turn. There are much more intimate relations between the earth and the living organisms which populated it, and it may even be demonstrated that the earth was developed because of them.
It is to them [fossils] alone that we owe the commencement of even a Theory of the Earth ... By them we are enabled to ascertain, with the utmost certainty, that our earth has not always been covered over by the same external crust, because we are thoroughly assured that the organized bodies to which these fossil remains belong must have lived upon the surface before they came to be buried, as they now are, at a great depth.
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