amiability leads to good luck ? 老頭子堅(jiān)信 “～”，所以總是笑容可掬。The old man always wore a big smile on his face,for he believed in the saying that good naturedness leads to propitiousness.
和氣致祥hé qì zhì xiánɡ
致：招致。和睦融洽的氣氛可以招致吉祥。good-naturedness leads to propitiousness, amiability leads to good luck