This brings us to the third class--the very small number of persons who are, in the matter of human progress, the salt of the earth; the few who can endure to see without understanding, to hear without immediately believing or disbelieving, to learn what they can, without any consideration of what figure they themselves shall make in the transaction; and even to be unable to reconcile the new phenomena with their own prior experience or conceptions. There is no need to describe how rare this class must necessarily be, for every one who has eyes sees how near the passions and the prejudices of the human being lie to each other. These are the few who unite the two great virtues of earnestly studying the facts, and keeping their temper, composure and cheerfulness through whatever perplexity their inquiry may involve. It is remarkable that while the world is echoing all round and incessantly with the praise of the life of the man spent in following truth wherever it may lead, the world is always resounding also with the angry passions of men who resent all opinions which are not their own, and denounce with fury or with malice any countenance given to mere proposals to inquire in certain directions which they think proper to reprobate. Not only was it horrible blasphemy in Galileo to think as he did of the motion of the earth, but in his friends to look through his glass at the stars. This Salem story is indeed shocking in every view--to our pride as rational beings, to our sympathy as human beings, to our faith as Christians, to our complacency as children of the Reformation. It is so shocking that some of us may regret that the details have been revived with such an abundance of evidence. But this is no matter of regret, but rather of congratulation, if we have not outgrown the need of admonition from the past. How does that consideration stand?