The esteem which so many people have for the spiritual substance, appears to result from the impossibility they find in defining it in an intelligible way. The contempt which our metaphysicians show for matter, comes from the fact that "familiarity breeds contempt." When they tell us that the soul is more excellent and noble than the body, they tell us nothing, except that what they know nothing about must be more beautiful than that of which they have some faint ideas.