The very essence of instinct is that it's followed independently of reason. — Charles Darwin Copy Share Image
How so many absurd rules of conduct, as well as so many absurd religious beliefs, have originated, we do not know; nor… — Charles Darwin Copy Share Image
Certainty and similar states of ‘knowing what we know’ arise out of involuntary brain mechanisms that, like love or anger, function independently… — Robert A. Burton Copy Share Image
