top of page
.png){kind=small}
"I accept extinction as best explaining disjoined species. I see that the same cause must have reduced many species of great range to small, and that it may have reduced large genera to so small, and of families."
Standard
Customized
Explore more quotes by Asa Gray
"It was always understood that plants and animals, though completely contrasted in their higher representatives, approached each other very closely in their lower and simpler forms. But they were believed not to blend."
"It remains to consider what attitude thoughtful men and Christian believers should take respecting them, and how they stand related to beliefs of another order."
"The former conviction that these two kingdoms were wholly different in structure, in function, and in kind of life, was not seriously disturbed by the difficulties which the naturalist encountered when he undertook to define them."
"The best opinion now is, that there are multitudinous forms which are not sufficiently differentiated to be distinctively either plant or animal, while, as respects ordinary plants and animals, the difficulty of laying down a definition has become far greater than ever before."
"We may take it to be the accepted idea that the Mosaic books were not handed down to us for our instruction in scientific knowledge, and that it is our duty to ground our scientific beliefs upon observation and inference, unmixed with considerations of a different order."
"Many years ago it was taught that plants and animals were composed of different materials: plants, of a chemical substance of three elements,- carbon, hydrogen, and oxygen; animals of one of four elements, nitrogen being added to the other three."
"It was implicitly supposed that every living thing was distinctively plant or animal; that there were real and profound differences between the two, if only they could be seized."
"But it was soon ascertained that this quaternary matter of the animal body was chemically the same in the plant, was elaborated there, and only appropriated by the animal."
"Why is it not just as likely that there were as many small general nearly at first as now, and as great a disproportion in the number of their species?"
"We have spoken of beings so low in the scale that the individuals throughout their whole existence are not sufficiently specialized to be distinctively plant or animal: yet these are definite life in simpler shape."
Exlpore more Cause quotes
"Every man is a creative cause of what happens, a primum mobile with an original movement."
"An explanation of cause is not a justification by reason."
"Magnetism, as you recall from physics class, is a powerful force that causes certain items to be attracted to refrigerators."
"The intellectuals' chief cause of anguish are one another's works."
"The rigid cause themselves to be broken; the pliable cause themselves to be bound."
bottom of page