Charles Darwin — "The greatest discovery of all is that the world is not as we thought it was."

"My mind seems to have become a kind of machine for grinding general laws out of large collections of facts, but why this should have caused the atrophy of that part of the brain alone, on which the hi…"

"I am a strong believer in the power of observation and the importance of collecting facts."

"Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by sc…"

"Man in his arrogance thinks himself a great work, worthy of the interposition of a deity. More humble and I believe truer to consider him created from animals."

"I hate a Barnacle as no man ever did before, not even a Sailor in a slow-sailing ship."