Chasidut על אבות 1:2

Since there is in the mishnah "on three things the world stands on Torah, and on Service and on Acts of Loving Kindness" (Avot 1:2) and there is in the mishnah "on three things the world stands, on Judgment, and on Truth and on Peace" (Avot 1:18). And we can also say that they have the same intention, that behold we are presented with three levels in the service of the High Creator, one - Torah learned for its own sake, and in truth our sages of blessed memory allowed us [study of Torah] even not for its own sake, as they said "a person should always engage etc" even if one does not reach to the levels of learning for its own sake nevertheless you should not refrain from it, since it is not quickly that one attains to learn for its own sake, but through a great exertion in one's service to the Blessed Name with all the good personal qualities.