To-day we find it difficult to realise such a state of mind. Every man of our period who takes the smallest interest in things spiritual--be he the most orthodox ecclesiastic--at least knows that there are capable people in the world whose opinions differ from his, who seek fresh knowledge; he knows it, even though he may pretend that they are people who have gone astray and have been abandoned by God. No one can be entirely blind to the new values created by human intellect. But the men of the Middle Ages were swayed by a monstrous dualism, and despite their belief in the illimitable power of human cognition, they unquestioningly accepted the sacred tradition and rejected the naive evidence of the senses and intellect whenever it seemed to contradict the dogma. Thus mediaeval science did not represent what it represented in antiquity, and what it represents now, the study of the true relationship of things, but rather the application of truths revealed once and for all. There was nothing more to be discovered, and therefore scientists took a delight in logical and dialectical speculations which to a man of our day seem senseless and childish. Far into the Renascence, natural history was a medley of ancient traditions, oriental fables and superficial observations. The strangest qualities were attributed to animals with which we come almost daily into contact. The following quotations are culled from a Provencal book on zoology: "The cricket is so pleased with its song that it forgets to feed and dies singing." "When a snake catches sight of a nude man, it is so filled with fear that it does not dare to look at him; but if the man is dressed, the snake looks upon him as a weakling and springs upon him." "The adder guards the balsam; if a man desires to steal the balsam, he must first send the adder to sleep by playing on a musical instrument. But if the adder discovers that it is being duped, it closes one of its ears with its tail and rubs the other one against the ground until it is filled with earth; then it cannot hear the music and remains awake." "Of all animals there is none so dangerous as the unicorn; it attacks everybody with the horn which grows on the top of its head. But it takes such delight in virgins that the hunters place a maiden on its trail. As soon as the unicorn sees the maiden, it lays its head into her lap and falls asleep, when it may easily be caught." Of the magnet we learn among other things that it restores peace between husband and wife, softens the heart of all men and cures dropsy. "If a magnet is made into a powder and burnt on charcoal in the four corners of the house, the inhabitants imagine that they cannot keep on their legs and run away, sorely affrighted; thieves frequently profit by this fact. If a magnet is placed under the pillow of a sleeping woman, she is compelled, if she is virtuous, to embrace her husband in her sleep; if she has betrayed him, she will fall out of her bed with fear."