It may be doubted that there are many other animals which have played so important a part in the history of the world as have these lowly organized creatures.
Charles DarwinBut I own that I cannot see as plainly as others do, and I should wish to do, evidence of design and beneficence on all sides of us. There seems to me too much misery in the world. I cannot persuade myself that a beneficent and omnipotent God would have designedly created that a cat should play with mice.
Charles Darwin... probably all the organic beings which have ever lived on this earth have descended from some one primordial form, into which life was first breathed.
Charles DarwinHow fleeting are the wishes and efforts of man! how short his time! and consequently how poor will his products be, compared with those accumulated by nature during whole geological periods. Can we wonder, then, that nature's productions should be far 'truer' in character than man's productions; that they should be infinitely better adapted to the most complex conditions of life, and should plainly bear the stamp of far higher workmanship?
Charles Darwin