Charles Darwin — "It is not the strongest of the species that survives, nor the most intelligent, …"

"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…"

"The astonishment which I felt on first seeing a party of Fuegians on a wild and broken shore will never be forgotten by me, for the reflection at once rushed into my mind—such were our ancestors."

"In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed."

"The mystery of the beginning of all things is insoluble by us; and I for one must be content to remain an agnostic."

"I feel most deeply that the whole subject is too profound for the human intellect. A dog might as well speculate on the mind of Newton."