I am aware that the conclusion at which I have arrived will be denounced by many as highly irreligious, but he who denounces it is bound to show why it is more irreligious to explain the origin of man as a distinct species by descent from other forms, through the laws of variation and natural selection, than to explain the birth of the individual through the laws of ordinary reproduction.
The birth both of the species and of the individual are equally parts of that grand sequence of events which our minds refuse to accept as the result of blind chance. The understanding revolts at such a conclusion, whether or not man be looked at as a special creation, or as the product of general laws.
I have said that in one sense it goes against the grain of all my feelings; but I think these feelings will be modified when the facts are better known. I believe that the time will come when this view will be generally accepted by naturalists.
Many thanks for your most kind and valuable letter. I have been particularly glad to hear your views, which will have great weight with me. I know that I may trust to your kindness to forgive the freedom with which I write.
About This Letter
Historical Context
Written during the intense controversy following publication of 'On the Origin of Species' in 1859. Gray was Darwin's key supporter in America and helped defend evolutionary theory against religious objections.
Significance
This correspondence was crucial in establishing evolutionary theory in America. Gray's support helped legitimize Darwin's work in religious circles by arguing it was compatible with faith.
About Charles Darwin
Charles Darwin (1809-1882) revolutionized biology with his theory of evolution by natural selection, fundamentally changing our understanding of life on Earth.
About Asa Gray
Asa Gray (1810-1888) was America's leading botanist and Harvard professor who became Darwin's most important ally in defending evolution in the United States.
Additional Resources
- Darwin Correspondence Project Complete archive of Darwin's correspondence
- Cambridge University Library Darwin Collection Digital manuscripts and letters