If we survey the wealth of phenomena presented to us by secondary sexual characters, we can hardly fail to be convinced of the truth of the principle of sexual selection. And certainly no one who has accepted natural selection should reject sexual selection, for, not only do the two processes rest upon the same basis, but they merge into one another, so that it is often impossible to say how much of a particular character depends on one and how much on the other form of selection.英文原著 · 《Darwin and Modern Science》
I digress here in order to give an account of the intimate processes, which, according to my view, take place within the germ-plasm, and which I have called "GERMINAL SELECTION." These processes are of importance since they form the roots of variation, which in its turn is the root of natural selection. I cannot here do more than give a brief outline of the theory in order to show how the Darwin-Wallace theory of selection has gained support from it.英文原著 · 《Darwin and Modern Science》
As we have said, this theory of sexual selection takes up a great deal of space in Darwin's book, and it need only be considered here in so far as Darwin applied it to the descent of man. To this latter problem the whole of Part I is devoted, while Part III contains a discussion of sexual selection in relation to man, and a general summary. Part II treats of sexual selection in general, and may be disregarded in our present study. Moreover, many interesting details must necessarily be passed over in what follows, for want of space.英文原著 · 《Darwin and Modern Science》
A full exposition of Sexual Selection appeared in the "The Descent of Man" in 1871, and in the greatly augmented second edition, in 1874. It has been remarked that the two subjects, "The Descent of Man and Selection in Relation to Sex", seem to fuse somewhat imperfectly into the single work of which they form the title. The reason for their association is clearly shown in a letter to Wallace, dated May 28, 1864: "...I suspect that a sort of sexual selection has been the most powerful means of changing the races of man." ("More Letters", II. page 33.)英文原著 · 《Darwin and Modern Science》
Cleage, and he was in the Rialto Building, St. Louis, Missouri. He wrote me in extreme confidence, "You have been selected."
Were you ever selected? If you were, then you know the thrill that rent my manly bosom as I read that letter from this man who said he was a friend of our family. "You have been selected because you are a prominent citizen and have a large influence in your community. You are a natural leader and everybody looks up to you."
He knew me! He was the only man who did know me. So I took the cork clear under.英文原著 · 《The University of Hard Knocks》
Use and disuse have here come into play and served to reduce the function to its present rudimentary condition. That these rudimentary organs are rarer in machinery than in animal life is owing to the more prompt action of the human selection as compared with the slower but even surer operation of natural selection. Man may make mistakes; in the long run nature never does so. We have only given an imperfect example, but the intelligent reader will supply himself with illustrations.英文原著 · 《Canterbury Pieces》
How do you respond to the criticism that hedge funds are the scavengers of the financial sector and that a select few have undue influence on the markets?美剧 · 《Billions》
Don't throw away a promising career over a selective and misguided sense of loyalty.美剧 · 《Billions》
But if you really plan on giving billions of dollars to this stock jockey, ask him this, how he's codified the behavioral heuristics at his firm from stock selection to position sizing to market timing to risk management.美剧 · 《Billions》
There seems to be more adverse selection - than we anticipated. - Can we just say it?美剧 · 《Billions》