Date: 1890

"Have you got a brook in your little heart, / Where bashful flowers blow, / And blushing birds go down to drink, / And shadows tremble so?"

— Dickinson, Emily (1830-1886)

Date: 1890

"The wizard-fingers never rest, / The purple brook within the breast / Still chafes its narrow bed."

— Dickinson, Emily (1830-1886)

Date: 2010

"A thought to mind, so to the string / plucked, or touched, or bowed, the music is, / a wrinkling of the air as immaterial / and brief as sunlight glancing on a wave."

— Le Guin, Ursula (b. 1929)