And, considering the thoughtless manner in which they lavished their strength, when investigating a favourite science, they have wasted the lamp of life, forgetful of the midnight hour; or, when, lost in poetic dreams, fancy has peopled the scene, and the soul has been disturbed, till it shook the constitution, by the passions that meditation had raised; whose objects, the baseless fabric of a vision, faded before the exhausted eye, they must have had iron frames.