The Liber ad milites templi de laude novae militiae (Latin for 'Book to the Knights of the Temple, in praise of the new knighthood') was a work written by Saint Bernard of Clairvaux (1090 – August 20, 1153). From its tone, content, and timing, its main purpose appears to have been to boost the morale of the fledgling Knights Templar in Jerusalem. Source: Wikipedia (en)