Every one must be struck with astonishment, when he first beholds one of these vast rings of coral-rock, often many leagues in diameter, here and the….

From the war of nature, from famine and death, the most exalted object which we are capable of conceiving, namely, the production of higher animals, ….

One hand has surely worked throughout the universe..

It is often said that all the conditions for the first production of a living organism are now present, which could ever have been present. But if (a….

How so many absurd rules of conduct, as well as so many absurd religious beliefs, have originated, we do not know; nor how it is that they have becom….

Owing to this struggle for life, any variation, however slight and from whatever cause proceeding, if it be in any degree profitable to an individual….

It is scarcely possible to doubt that the love of man has become instinctive in the dog..

At last gleams of light have come, and I am almost convinced (quite contrary to opinion I started with) that species are not (it is like confessing a….

I fully agree with all that you say on the advantages of Spencer's excellent expression of 'the survival of the fittest.' This, however, had not occu….

Light may be shed on man and his origins..

The question of whether there exists a Creator and Ruler of the Universe has been answered in the affirmative by some of the highest intellects that ….

It seems to me absurd to doubt that a man may be an ardent Theist and an evolutionist. ... I have never been an atheist in the sense of denying the e….

It may be said that natural selection is daily and hourly scrutinizing, throughout the world, every variation, even the slightest; rejecting that whi….

I see no good reasons why the views given in this volume should shock the religious views of anyone..

A bad earthquake at once destroys the oldest associations: the world, the very emblem of all that is solid, has moved beneath our feet like a crust o….

I have at least, as I hope, done good service in aiding to overthrow the dogma of separate creations..

The most powerful natural species are those that adapt to environmental change without losing their fundamental identity which gives them their compe….

A man who has no assured and ever present belief in the existence of a personal God or of a future existence with retribution and reward, can have fo….

Nevertheless so profound is our ignorance, and so high our presumption, that we marvel when we hear of the extinction of an organic being; and as we ….

Even people who aren’t geniuses can outthink the rest of mankind if they develop certain thinking habits..

Man with all his noble qualities, with sympathy which feels for the most debased, with benevolence which extends not only to other men but to the hum….