The study of Nature makes a man at last as remorseless as Nature.

Our challenge is not to educate the children we used to have or want to have, but to educate the children who come to the schoolhouse door.

If all the animals and man had been evolved in this ascendant manner, then there had been no first parents, no Eden, and no Fall. And if there had been no fall, then the entire historical fabric of Christianity, the story of the first sin and the reason for an atonement ... collapsed like a house of cards.

There's truths you have to grow into.

The choice is: the Universe...or nothing.

There is no upper limit to what individuals are capable of doing with their minds. There is no age limit that bars them from beginning. There is no obstacle that cannot be overcome if they persist and believe.

The serious people who took him seriously never felt quite sure of his deportment; they were somehow aware that trusting their reputations for judgment with him was like furnishing a nursery with egg-shell china.