Are they from the epic science fiction and award-winning book by Frank Herbert published in 1965 or from the magisterial description of the Arab Revolt 1916–1918 written by T.E. Lawrence (‘Lawrence of Arabia’) and published in 1926?
I know, but if you did not, you could easily mistake them for the sort of poetic and prophetic declamations that Frank Herbert has Paul Atreides make throughout Dune and the sequel Dune: Messiah. There are six great novels in the Dune series.