You can't control how other people feel, but you can control how you react to them.
Your most unhappy customers are your greatest source of learning.
我永远感激我的贫苦父母。我欠他们一切,无论是我的教育、我的生命,还是我取得的任何成功。
译文:在这片疆域之内,有平原、湿地、丘陵和广阔的田野,一眼望去无边无际。