Theory of selection /.../ leaves untouched all that can be inferred from the existence of the conditions which make organic evolution possible: matter which lives, multiplies, and varies; an environment which possesses the marvellously complex constitution required to make these processes possible. /.../ it cannot produce either the original environment or the original living matter. These must be due either to luck or to contrivance; and, if they be due to luck, the luck (we must own) is great. How great we cannot say.
Arthur BalfourRelated topics
complex due evolution great leaves lives living luck matter organic possible produce selectionRelated quotes
But this (a listing of illustrations of how the genome can change other than by mutations) doesn't constitute a crisis-it's a very interesting finding that shows that variation in a genome can arise by processes other than mutation of an organism's own DNA. The disposition of that variation still must occur via either natural selection (it can be good or bad) or genetic drift (no effect on fitness). This hasn't really changed the theory of evolution one iota, though it's changed our view of where organisms can acquire new genes.
Jerry Coyne
The party which is humorously called the Douglas Democracy no more recognizes the rights declared by the Declaration of Independence to be inalienable than does the party of the administration. Its leader repudiates the theory that the Constitution establishes slavery, but he does not perceive in it, or in the circumstances of its adoption, or in the expressed sentiments and actions of its framers, any reason to suppose that it favors liberty more than slavery. He leaves all human rights at the mercy of a majority, and insists that the Constitution does the same.
George William Curtis
If we want to postulate a deity capable of engineering all the organized complexity in the world, either instantaneously or by guiding evolution, that deity must have been vastly complex in the first place. The creationist, whether a naive Bible-thumper or an educated bishop, simply postulates an already existing being of prodigious intelligence and complexity. If we are going to allow ourselves the luxury of postulating organized complexity without offering an explanation, we might as well make a job of it and simply postulate the existence of life as we know it!
Richard Dawkins
Throughout his last half-dozen books, for example, Arthur Koestler has been conducting a campaign against his own misunderstanding of Darwinism. He hopes to find some ordering force, constraining evolution to certain directions and overriding the influence of natural selection. [...] Darwinism is not the theory of capricious change that Koestler imagines. Random variation may be the raw material of change, but natural selection builds good design by rejecting most variants while accepting and accumulating the few that improve adaptation to local environments.
Stephen Jay Gould
From this new point of view, the universe I had inhabited became an object I could perceive in its entirety. It was a hypersphere embedded in a cloud of alternative states-the sum of all possible quantum trajectories from the big bang to the decay of matter. "Reality”-history as we had known or inferred it-was only the most likely of these possible trajectories. There were countless others, real in a different sense: a vast but finite set of paths not taken, a ghostly forest of quantum alternatives, the shores of an unknown sea.
Robert Charles Wilson