Looking back to my Oxford days, I recall some doggerel lines, of German origin, in which this belief finds apt expression.

A disciple who is in trouble about his soul says to his master: "Willing serve I my friends, but do it, alas! with affection, And so gnaws me my heart, that I'm not virtuous yet." To this the master replies: "Help except this there is none: you must strive with might to contemn them, And with horror perform then what the law may enjoin." If this conception of morality is correct, if it is true that the atmosphere of the virtuous life should be one of horror and even of hatred, then it must be admitted that the Utopian children are receiving a seriously defective education.

But the "if" is a large one; and for my part I incline to the belief that love, as a motive to action, is better than hatred, joy than horror, sunshine than gloom.
The day will indeed come when the Utopian--a child no longer--will have to do things, either for his own sake or in order to discharge obligations to others, which will be, or will seem to be, against the grain even of his happy nature; and the sense of duty will then have to come to his aid.

But there is no reason why he, or his teachers, should anticipate that day.

To compel him, while still a child, to work against the grain of his nature, when there was no real need for this, would not be the best preparation for the trials that await him.