Here's a stab: He grew up with certain ideals and thought he would single handedly make the world a better place. However, he's come to peace with the idea that he can play a vital role in society through finding a calling (albeit a pedestrian one such as a farmer) and work hard at that calling. While his life may not be as romantic as the one he had planned for himself, he does not have to give up all of his ideals (about good and evil). And although life's busyness and hard work may require his full attention, he can always fall back on those ideals when he needs them.
Here's a stab: He grew up with certain ideals and thought he would single handedly make the world a better place. However, he's come to peace with the idea that he can play a vital role in society through finding a calling (albeit a pedestrian one such as a farmer) and work hard at that calling. While his life may not be as romantic as the one he had planned for himself, he does not have to give up all of his ideals (about good and evil). And although life's busyness and hard work may require his full attention, he can always fall back on those ideals when he needs them.