Meaning and context of this quote

“There are those who seek knowledge for the sake of knowledge: that is curiosity. There are those who seek knowledge to be known by others: that is vanity. But there are also those who seek knowledge in order to serve: that is love.”

from Sermons on the Song of Songs — Bernard of Clairvaux

This passage from Sermons on the Song of Songs reflects Bernard of Clairvaux’s teaching on love.