你最不满意的客户是你最大的学习来源。
Your most unhappy customers are your greatest source of learning.
Every book is a journey, and every journey is a book.
世界上最好和最美丽的东西是看不见甚至摸不着的——它们必须用心去感受。
The difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather a lack in will.