As many more individuals of each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being, if it vary however slightly in any manner profitable to itself, under the complex and sometimes varying conditions of life, will have a better chance of surviving, and thus be naturally selected. From the strong principle of inheritance, any selected variety will tend to propagate its new and modified form.
Charles DarwinBelieving as I do that man in the distant future will be a far more perfect creature than he now is, it is an intolerable thought that he and all other sentient beings are doomed to complete annihilation after such long-continued slow progress.
Charles DarwinI see no good reasons why the views given in this volume should shock the religious views of anyone.
Charles DarwinI have no great quickness of apprehension or wit which is so remarkable in some clever men, for instance Huxley
Charles DarwinOur descent, then, is the origin of our evil passions!! The devil under form of Baboon is our grandfather.
Charles Darwin