The brain of man, especially in infancy, is like soft wax, fit to receive every impression that is made upon it. Education furnishes him with almost all his ideas at a time, when he is incapable of judging for himself. We believe we have received from nature, or have brought with us at birth, the true or false ideas, which, in a tender age, had been instilled into our minds; and this persuasion is one of the greatest sources of errors.