The door opened; but he seemed to take no heed, so diligently did he count his figures.
There he plied his tasks so diligently that he excelled all in book-learning.
No bugle had sounded, yet the whole camp was softly and diligently astir.
He won his spurs by perseverance, knowledge, and ability, diligently cultivated.
That he will serve me diligently and faithfully I have ...