Sometimes coincidentally an unintelligent person can accomplish a task but that does not mean that he is a knower of means and device or is experienced. A ruler should be careful enough to designate other tasks to such persons.

Let not a single day pass without your learning a verse, half a verse, or a fourth of it, or even one letter of it; nor without attending to charity, study and other pious activity.

Fate being unfavorable( or without god's grace, even an easy task becomes difficult to accomplish)

A person becomes great not be sitting on some high seat, but through higher qualities. Can a crow become an eagle by simply sitting on the top of a palatial building?

The Goddess of wealth is unsteady, and so is the life breath. The duration of life is uncertain, and the place of habitation is uncertain; but in all this inconsistent world religious merit alone is immovable.

What good can the scriptures do to a man who has no sense of his own? Of what use is as mirror to a blind man?

Task performed by an unintelligent person should not be rated high.