An intelligent person might feel lonely… or tend to be lonely…
Maybe because he does not benefit much from people… or because he does not like the way they act… or does not find a match to his friendship.
The philosopher Diogenes is a clear example: he was seen carrying a lamp during the daytime, and when asked the reason, he said, “I am searching for a person!”
Thus an intelligent person could fall in pride too…
Either due to his continual success, or by people’s talk about his brilliant deeds, or feeling superior when compared to others… Generally, the virtue of humility on the part of those who are intelligent needs a greater effort…
Here, someone might ask this intelligent question: why doesn’t the intelligent person discover these faults, through his intelligence, and avoid them?
The answer is that he might discover his faults, but to avoid them is another point. There is a difference between the intellectual and spiritual, between the mind and soul.
—H.H. Pope Shenouda III, Words of Spiritual Benefit Vol. 1