《三国志·蜀书·诸葛亮传》
当时左将军刘备因为诸葛亮有特殊的才能，就三次到草庐之中去拜见诸葛亮，诸葛亮认为，刘备雄姿英发，于是劳心劳力，跟先主结下了很好的关系。
时左将军刘备以亮有殊量，乃三顾亮於草庐之中；亮深谓备雄姿杰出，遂解带写诚，厚相结纳。
At the time, General of the Left Liu Bei, because of Zhuge Liang's extraordinary talent, paid three visits to his thatched cottage to court Zhuge Liang, Zhuge Liang judged that Liu Bei's heroism was genuine, and so exerted his mind, and established a bond with the First Lord.