Johnson has a curious observation on the Mind itself. He thinks it obtains a stationary point, from whence it can never advance, occurring before the middle of life. "When the powers of nature have attained their intended energy, they can be no more advanced. The shrub can never become a tree. Nothing then remains but _practice_ and _experience_; and perhaps _why they do so little may be worth inquiry_."[A] The result of this inquiry would probably lay a broader foundation for this art of the mind than we have hitherto possessed, ADAM FERGUSON has expressed himself with sublimity:--"The lustre which man casts around him, like the flame of a meteor, shines only while his motion continues; the moments of rest and of obscurity are the same." What is this art of meditation, but the power of withdrawing ourselves from the world, to view that world moving within ourselves, while we are in repose? As the artist, by an optical instrument, reflects and concentrates the boundless landscape around him, and patiently traces all nature in that small space. [Footnote A: I recommend the reader to turn to the whole passage, in Johnson's "Betters to Mrs. Thrale," vol. i. p. 296.] There is a government of our thoughts. The mind of genius can be made to take a particular disposition or train of ideas. It is a remarkable circumstance in the studies of men of genius, that previous to composition they have often awakened their imagination by the imagination of their favourite masters. By touching a magnet, they become a magnet. A circumstance has been, recorded of GRAY, by Mr. Mathias, "as worthy of all acceptation among the higher votaries of the divine art, when they are assured that Mr. Gray never sate down to compose any poetry without previously, and for a considerable time, reading the works of Spenser." But the circumstance was not unusual with Malherbe, Corneille, and Racine; and the most fervid verses of Homer, and the most tender of Euripides, were often repeated by Milton. Even antiquity exhibits the same exciting intercourse of the mind of genius. Cicero informs us how his eloquence caught inspiration from a constant study of the Latin and Grecian poetry; and it has been recorded of Pompey, who was great even in his youth, that he never undertook any considerable enterprise without animating his genius by having read to him the character of Achilles in the first _Iliad_; although he acknowledged that the enthusiasm he caught came rather from the poet than the hero. When BOSSUET had to compose a funeral oration, he was accustomed to retire for several days to his study, to ruminate over the pages of Homer; and when asked the reason of this habit, he exclaimed, in these lines-- --magnam mihi mentem, animumque Delius inspiret Vates.