当一个孩子问出一连串的「为什么」的时候，最聪明的回复就是「我不知道，你是怎么想的呢？」
译文：年轻时总觉得做人非常容易，长大后才知道创家立业的艰难。赏析：我们不经历社会的磨炼和捶打，是不会明白人世的艰难。当我们把生活的酸甜苦辣咸都尝遍，才会懂得人生的百般滋味。
A friend is someone who knows all about you and still loves you.
The value chain is the set of activities through which a product or service is created and delivered to customers.