in Thoreau’s Journal:
What is called genius is the abundance of life or health, so that whatever addresses the senses, as the flavor of these berries, or the lowing of that cow, which sounds as if it echoed along a cool mountain-side just before night, where odiferous dews perfume the air and there is everlasting vigor, serenity, and expectation of perpetual untarnished morning — each sight and sound and scent and flavor — intoxicates with a healthy intoxication. The shrunken stream of life overflows its banks, makes and fertilizes broad intervals, from which generations derive their sustenances. This is the true overflowing of the Nile. So exquisitely sensitive are we, it makes us embrace our fates, and, instead of suffering or indifference, we enjoy and bless.