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 DarwinAbout author
- Author's profession: Scientist
- Nationality: english
- Born: February 12, 1809
- Died: April 19, 1882
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Since there is no one else to praise me, I will praise myself -- will say that I have never tampered with a single tooth in my thought machine, such as it is. There are teeth missing, God knows -- some I was born without, teeth that will never grow. And other teeth have been stripped by the clutchless shifts of history -- But never have I willfully destroyed a tooth on a gear of my thinking machine. Never have I said to myself, 'This fact I can do without.
Kurt Vonnegut