In Chinese culture, praises and compliments have a wider range. It is the same with the American culture that for abilities and achievements, also other serious praise, only those people with the talent evaluation(称赞) ability can praise others. Older can praise young man, but this is only an encouragement, not really compliments on their abilities and achievements. Meanwhile, the younger can praise the older and the lower can praise the superior(地位高的), but this is just a compliment, and this is flattering(谄媚 的) more to those complimented. Therefore, in our daily life, we have a lot of praises for other people's abilities and achievements but they have different meanings on different occasions(场合), not only serious praises, but also a compliment to make the relationship closer.