The most daring flights of genius do not always soar assured when they seek a throne in the fire & find a grave in copious tears. For knowledge is also a vice: if it is not constantly curbed, & if this is not acknowledged, the greater the havoc it wreaks; & if the flight is not brought down, fed & fattened on subtleties it will forget the essential for the sake of the rare & strange. If a skilled hand does not prevent the growth of a thickly leafed tree, its proliferating branches will steal the fruit.