Charles Darwin — "I have always felt a strong feeling of gratitude to those who have helped me in …"
I have always felt a strong feeling of gratitude to those who have helped me in my work.
I have always felt a strong feeling of gratitude to those who have helped me in my work.
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"We are not here concerned with the first origin of life."
"The very essence of instinct is that it's followed independently of reason."
"The love of experiment and the patient observation of nature are the two great qualifications for a naturalist."
"I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection."
"I am not apt to follow blindly the lead of other men."
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