The age-old and noble thought of 'I will lay down my life to save another,' is nothing more than cowardice.
...all nature is perverse & will not do as I wish it.
Sympathy will have been increased through natural selection
Disbelief crept over me at a very slow rate, but at last it was complete.
If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I can find no such case.
When the views entertained in this volume on the origin of species, or when analogous views are generally admitted, we can dimly forsee that there will be a considerable revolution in natural history.