I have known many an apparently dull boy, by perseveringly endeavouring to learn what he has had to do, and then steadily pursuing the course marked out for him, rise far above his quick and so-called clever but careless companions.
"Stories of Animal Sagacity"
W.H.G. Kingston
Patiently and perseveringly follow up the line of duty which has been set you.
"Stories of Animal Sagacity"
W.H.G. Kingston
If we do our duty repeatedly and perseveringly in any direction, we form the habit of doing it, learn to enjoy it, and acquire a preference for it.
"Practical Ethics"
William DeWitt Hyde