Man is developed from an ovule, about 125th of an inch in diameter, which differs in no respect from the ovules of other animals.

The most important factor in survival is neither intelligence nor strength but adaptability.

To my deep mortification my father once said to me, "You care for nothing but shooting, dogs, and rat-catching, and you will be a disgrace to yourself and all your family."

If I had my life to live over again, I would have made a rule to read some poetry and listen to some music at least once every week.

I ought, or I ought not, constitute the whole of morality.

We are optimists, until we are not.

What can be more curious than that the hand of a man, formed for grasping, that of a mole for digging, the leg of the horse, the paddle of the porpoise, and the wing of the bat, should all be constructed on the same pattern?