Education consists mainly in what we have unlearned. - Mark Twain

The trouble is not in dying for a friend, but in finding a friend worth dying for.

Adam was but human — this explains it all. He did not want the apple for the apple's sake, he wanted it only because it was forbidden. The mistake was in not forbidding the serpent; then he would have eaten the serpent.

The fact that man knows right from wrong proves his intellectual superiority to the other creatures; but the fact that he can do wrong proves his moral inferiority to any creature that cannot.