Charles Darwin Quote

Some of my critics have said, "Oh, he is a good observer, but he has no power of reasoning!" I do not think that this can be true, for the "Origin of Species" is one long argument from the beginning to the end, and it has convinced not a few able men. No one could have written it without having some power of reasoning.

In: Francis Darwin (ed.), The Life and Letters of Charles Darwin (Volume 1)