preceptor แปลว่า

"A man who had thought so much on the subjects of language and education was surely no ordinary preceptor."

"When a youth of twelve years, - since, as Solomon says, "The root of learning is bitter, although the fruit is sweet - and following his literary pursuits, in order to avoid the discipline and frequent stripes inflicted on him by his preceptor, he ran away, and concealed himself under the hollow bank of a river[.]"

"We shall resume our studies later on; but just now I am tired of playing the preceptor; and the eager thirst of my pupils for improvement does not console me for the slowness of their progress."