I am almost convinced (quite contrary to opinion I started with) that species are not (it is like confessing a murder) immutable.Charles Darwinvolume II, chapter II: "The Growth of the 'Origin of Species' — 1843-1856", page 23; letter to J.D. Hooker (11 January 1844)
A man who dares to waste one hour of time has not discovered the value of life.Charles Darwinvolume I, chapter VI: "The Voyage", page 266; letter to sister Susan Elizabeth Darwin (4 August 1836)
A cell is a complex structure, with its investing membrane, nucleus, and nucleolus.Charles Darwin"Pangenesis -- Mr. Darwin's Reply to Professor Delpino" Scientific Opinion (20 October 1869) page 426(Detractors sometimes claim Darwin thought that the cell was an undifferentiated mass of protoplasm. This quote proves otherwise.)
As for a future life, every man must judge for himself between conflicting vague probabilities.Charles DarwinThe Life and Letters of Charles Darwin, Volume I, chapter VIII: "Religion" (1887, p 307); letter to an unidentified German student (1879).
It is mere rubbish thinking, at present, of origin of life; one might as well think of origin of matter.Charles DarwinLetter to J.D. Hooker, 29 March 1863In The Correspondence of Charles Darwin, volume 11, 1863; Frederick Burkhardt, Duncan Porter, Sheila Ann Dean, Jonathan R. Topham, Sarah Wilmot, editors; Cambridge University Press, September 1999, page 278Sometimes paraphrased as “One might as well speculate about the origin of matter.”
A republic cannot succeed, till it contains a certain body of men imbued with the principles of justice and honour.Charles Darwinchapter VII: "Excursion to St. Fe, etc.", entry for 18-19 October 1833, page 165
Great is the power of steady misrepresentation; but the history of science shows that fortunately this power does not long endure.Charles Darwinchapter XV: "Recapitulation and Conclusion", page 421, in the sixth (1972) edition
I see no good reason why the views given in this volume should shock the religious feelings of any one.Charles Darwinchapter XV: "Recapitulation and Conclusion", page 421, in the sixth (1972) edition
It may be doubted whether any character can be named which is distinctive of a race and is constant.Charles Darwinvolume I, chapter VII: "On the Races of Man", page 225
Alas! A scientific man ought to have no wishes, no affections a mere heart of stone.Charles Darwinletter to T.H. Huxley, 9 July 1857, More Letters of Charles Darwin, Francis Darwin and A.C. Seward, editors (1903) volume I, chapter II: "Evolution, 1844-1858", page 98
Physiological experiment on animals is justifiable for real investigation; but not for mere damnable and detestable curiosity.Charles Darwinletter to E. Ray Lankester, quoted in his essay "Charles Robert Darwin" in C.D. Warner, editor, Library of the World's Best Literature: Ancient and Modern (R.S. Peale & J.A. Hill, New York, 1896) volume 2, pages 4835-4393, at page 4391
We will now discuss in a little more detail the struggle for existence.Charles Darwinchapter III: "Struggle For Existence", page 62Compare: "this perpetual struggle for room and food", The Reverend Thomas Malthus, An Essay on the Principle of Population (1798) section III.7.
Mere chance... alone would never account for so habitual and large an amount of difference as that between varieties of the same species.Charles DarwinOrigin of Species, Chapter IV: "Natural Selection" (1859, pg. 111)
My object in this chapter is solely to shew that there is no fundamental difference between man and the higher mammals in their mental faculties.Charles Darwinvolume I, chapter II: "Comparison of the Mental Powers of Man and the Lower Animals", page 35
The highest stage in moral culture at which we can arrive, is when we recognise that we ought to control our thoughts.Charles Darwinvolume I, chapter III: "Comparison of the Mental Powers of Man and the Lower Animals — continued", page 101
I hate a Barnacle as no man ever did before, not even a Sailor in a slow-sailing ship.Charles Darwinvolume I, chapter IX: "Life at Down", page 385; letter to William Darwin Fox (24 October 1852)quoted in At Home: A Short History of Private Life (2011) by Bill Bryson
I love fools' experiments. I am always making them.Charles Darwinrecollection by E. Ray Lankester, from his essay "Charles Robert Darwin" in C.D. Warner, editor, Library of the World's Best Literature: Ancient and Modern (R.S. Peale & J.A. Hill, New York, 1896) volume 2, pages 4835-4393, at page 4391
At some future period, not very distant as measured by centuries, the civilised races of man will almost certainly exterminate, and replace the savage races throughout the world.Charles DarwinCharles Darwin, The Descent of Man (1871), Ch. VI
Sympathy beyond the confines of man, that is, humanity to the lower animals, seems to be one of the latest moral acquisitions.Charles DarwinCharles Darwin, The Descent of Man (1871), Ch. III: Comparison Of The Mental Powers Of Man And The Lower Animals; Concluding Remarks, p. 96.
I have called this principle, by which each slight variation, if useful, is preserved, by the term of Natural Selection.Charles DarwinCharles Darwin, The Origin of Species (1859), Chapter III
[T]he young and the old of widely different races, both with man and animals, express the same state of mind by the same movements.Charles Darwinchapter XIV: "Concluding Remarks and Summary", page 352
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