Although random mutations influenced the course of evolution, their influence was mainly by loss, alteration, and refinement... Never, however, did that one mutation make a wing, a fruit, a woody stem, or a claw appear. Mutations, in summary, tend to induce sickness, death, or deficiencies. No evidence in the vast literature of heredity changes shows unambiguous evidence that random mutation itself, even with geographical isolation of populations, leads to speciation.
Lynn MargulisRelated topics
alteration appear claw course death evolution fruit geographical heredity loss mutation refinement sickness vast wing woody speciationRelated quotes
A good many causes tend to make good masters and mistresses quite as rare as good servants.... The large and rapid fortunes by which vulgar and ignorant people become possessed of splendid houses, splendidly furnished, do not, of course, give them the feelings and manners of gentle folks, or in any way really raise them above the servants they employ, who are quite aware of this fact, and that the possession of wealth is literally the only superiority their employers have over them.
Fanny Kemble
We can now determine, easily and relatively cheaply, the detailed chemical architecture of genes; and we can trace the products of these genes (enzymes and proteins) as they influence the course of embryology. In so doing we have made the astounding discovery that all complex animal phyla - arthropods and vertebrates in particular - have retained, despite their half-billion years of evolutionary independence, an extensive set of common genetic blueprints for building bodies.
Stephen Jay Gould
Your wickedness makes you as it were heavy as lead, and to tend downwards with great weight and pressure towards hell; and if God should let you go, you would immediately sink and switfly descend and plunge into the bottomless gulf, and your healthy constitution, and your own care and prudence, and best contrivance, and all your righteousness, would have no more influence to uphold you and keep you out of hell, than a spider's web would have to stop a fallen rock.
Jonathan Edwards (theologian)
It has become, in my view, a bit too trendy to regard the acceptance of death as something tantamount to intrinsic dignity. Of course I agree with the preacher of Ecclesiastes that there is a time to love and a time to die - and when my skein runs out I hope to face the end calmly and in my own way. For most situations, however, I prefer the more martial view that death is the ultimate enemy - and I find nothing reproachable in those who rage mightily against the dying of the light.
Stephen Jay Gould
God might grant us riches, honours, life, and even health, to our own hurt; for every thing that is pleasing to us is not always good for us. If he sends us death, or an increase of sickness, instead of a cure, Vvrga tua et baculus, tuus ipsa me consolata sunt. "Thy rod and thy staff have comforted me," he does it by the rule of his providence, which better and more certainly discerns what is proper for us than we can do; and we ought to take it in good part, as coming from a wise and most friendly hand.
Michel de Montaigne