心是脆弱的，但它也是我们最伟大力量的源泉。
The heart is a fragile thing, but it is also the source of our greatest strength.
Music is the strongest form of magic.
The way to make progress is to acknowledge ignorance.
你最不满意的客户是你最大的学习来源。
The most important object of both the workmen and the management should be the training and development of each individual in the establishment.