When we plant rice, grass grows too, but when we plant grass, it never grows rice. As we're doing "good" things sometimes "bad" things are participating. However, while we're doing "disadvantages" there's no "kindness" with it. Don't get bored of doing "good" things although sometimes imperfect.
Saat kita menanam padi, rumput pun ikut tumbuh tapi saat kita menanam rumput, tidak pernah tumbuhnya padi. Dalam kita melakukan "kebaikan" kadang-kadang hal yang "buruk" turut menyertai. Namun, saat melakukan "keburukan" tidak ada "kebaikan" bersamanya. Jangan bosan untuk berbuat "baik" meskipun kadang-kadang tidak sempurna.