“In the same way, if you are only reading what suits your taste, you would soon get bored. You must also read books that are not as per your taste, even if it means putting in great effort in the beginning to read such books. It is only when you force your mind to exercise itself by reading difficult thoughts that it grows, similar to the situation where the muscle mass in our body increases when we lift weights. When you broaden your mind, your ability to enjoy reading increases.”
Book:31 Ways to Happiness