Man was formed for society.

Truth emerges more readily from error than from confusion.

There was a young man in Rome that was very like Augustus Caesar; Augustus took knowledge of it and sent for the man, and asked him "Was your mother never at Rome?" He answered "No Sir; but my father was."

Mahomet made the people believe that he would call a hill to him, and from the top of it offer up his prayers for the observers of his law. The people assembled: Mahomet called the hill to come to him again and again; and when the hill stood still, he was never a whit abashed, but said, 'If the hill will not come to Mahomet, Mahomet will go to the hill.'

Many secrets of art and nature are thought by the unlearned to be magical.

You cannot teach a child to take care of himself unless you will let him try to take care of himself. He will make mistakes and out of these mistakes will come his wisdom.

But by far the greatest obstacle to the progress of science and to the undertaking of new tasks and provinces therein is found in this-that men despair and think things impossible.