…and smart study of a topic for an hour is more beneficial than to read and memorise for hours, rather days.
From the signs of happiness and success is the more a worshipper is increased in [beneficial] knowledge, the more he is increased in humility and compassion [towards others].
The concern and attention the servant [of Allaah] has for his sins, motivates [him] to abandon them. And his remorse over them is the key to repentance. And, the servant [of Allaah] maintains [this] concern and attention for the sins which he is afflicted by until [his concern and attention] becomes more beneficial for him than some of his good deeds.
This is because taqwa is a means for strengthening understanding, and strong understanding assists in increasing knowledge.
And certainly, when I drunk [it] I asked Allaah for beneficial knowledge.