It is better to be ignorant and have eyes than to be very knowledgeable about light and be blind.
But the universities exist specifically for that purpose. No society wants you to become wise: it is against the investment of all societies. If people are wise they cannot be exploited. If they are intelligent they cannot be subjugated, they cannot be forced into a mechanical life, to live like robots. They will assert themselves — they will assert their individuality. They will have the fragrance of rebellion around them; they will want to live in freedom.