Charles Darwin — "The world will not be inherited by the strongest, it will be inherited by those …"

"It is a wonderful fact that we can understand so much."

"I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection."

"A man who dares to waste one hour of time has not discovered the value of life."

"I see no good reason why the views given in this volume should shock the religious feelings of any one."

"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…"