The universe is traversed by paths or bridges or stepping-stones across the gulfs of space in every direction. To every soul that is created is its path, invisible to all but itself. Each soul, therefore, walking in its own path walks firmly; and to the astonishment of all other souls, who see not its path, it goes as softly and playfully on its way as if, instead of being a line, narrow as the edge of a sword, over terrific pits right and left, it were a wide prairie. Genius is a delicate sensibility to the laws of the world, adding the power to express them again in some new form. The highest measure of poetic power is such insight and faculty to fuse the circumstances of to-day as shall make transparent the whole web of circumstance and opinion in which the man finds himself, so that he releases himself from the traditions in which he grew,—no longer looks back to Hebrew or Greek or English use or tradition in religion, laws, or life, but sees so truly the omnipresence of eternal cause that he can convert the daily and hourly event of New York, of Boston, into universal symbols. I owe to genius always the same debt, of lifting the curtain from the common and showing me that gods are sitting disguised in every company. The conduct of Intellect must respect nothing so much as preserving the sensibility. My measure for all subjects of science as of events is their impression on the soul. That mind is best which is most impressionable. There are times when the cawing of a crow, a weed, a snow-flake, a boy’s willow whistle, or a farmer planting in his field is more suggestive to the mind than the Yosemite gorge or the Vatican would be in another hour. In like mood an old verse, or certain words, gleam with rare significance. But sensibility does not exhaust our idea of it. That is only half. Genius is not a lazy angel contemplating itself and things. It is insatiable for expression. Thought must take the stupendous step of passing into realization. A master can formulate his thought. Our thoughts at first possess us. Later, if we have good heads, we come to possess them. We believe that certain persons add to the common vision a certain degree of control over these states of mind; that the true scholar is one who has the power to stand beside his thoughts or to hold off his thoughts at arm’s length and give them perspective. * * * * *