君子战虽有陈,而勇为本焉。
君子作战虽然布阵,但还是以勇敢为本。
Your most unhappy customers are your greatest source of learning.
The truth doesn't always set you free. Sometimes it just reminds you that you're in a cage.
2010年:贝索斯致股东信《研发应该遍及每个部门》
All happy families are alike; each unhappy family is unhappy in its own way.