The study of contemporary species does not establish the existence of evolution; it provides facts which support it, but which do not fully demonstrate its existence. This is understandable, since at present we cannot show the series of successive stages which make up evolution, but only a fleeting picture of evolution.
Pierre-Paul GrasséRelated topics
contemporary evolution picture present series show study support factsRelated quotes
In every part of the universe we observe means adjusted with the nicest artifice to the ends which they are intended to produce; and in the mechanism of a plant, or animal body, admire how every thing is contrived for advancing the two great purposes of nature, the support of the individual, and the propagation of the species.
Adam Smith
The essential of a real picture is that the things which occur in it occur to him in his peculiarly personal fashion.... the idea of modernity is but a new attachment of things universal – a fresh relationship to the courses of the sun and to the living swing of the earth – a new fire of affection for the living essence present everywhere.
Marsden Hartley
As if to demonstrate, by a striking example, the impossibility of erecting any cerebral barrier between man and the apes, Nature has provided us, in the latter animals, with an almost complete series of gradations from brains little higher than that of a Rodent, to brains little lower than that of Man.
Thomas Henry Huxley
The atom can't be seen, yet its existence can be proved. And it is simple to prove that it can't ever be seen. It has to be studied by indirect evidence - and the technical difficulty has been compared to asking a man who has never seen a piano to describe a piano from the sound it would make falling downstairs in the dark.
Carl David Anderson
To suppose such a thing possible as a society, in which men, who are able and willing to work, cannot support their families, and ought, with a great part of the women, to be compelled to lead a life of celibacy, for fear of having children to be starved to suppose such a thing possible is monstrous.
William Cobbett