“How odd it is that anyone should not see that all observation must be for or against some view if it is to be of any service!”

Letter to (Sept. 18, 1861) in Life of Henry Fawcett (1885) pp. 100-101 https://books.google.com/books?id=RjI7AAAAYAAJ&amp;pg=PA100, and in More Letters of Charles Darwin: a Record of his Work in a Series of hitherto Unpublished Letters (1903) Vol. 1, p. 195 https://books.google.com/books?id=j0QeAQAAMAAJ&amp;pg=PA195, ed., Sir Francis Darwin, Albert Charles Seward. <br class="br">Other letters, notebooks, journal articles, recollected statements <br class="br">Context: About thirty years ago there was much talk that geologists ought only to observe and not theorise; and I well remember some one saying that at this rate a man might as well go into a gravel-pit and count the pebbles and describe the colours. How odd it is that anyone should not see that all observation must be for or against some view if it is to be of any service!