以我的观点，经济上的成功只是幸福的一个重要因素，但绝对不是唯一因素。尽管我们每一个人对于幸福有完全不同的理解，要幸福就要精神上和物质上都能得到满足。

　　In my point of view, one's economic success is only one of the key factors of happiness, but never the only one. To be happy, one needs to be both spiritually and materially satisfied though each of us may have a totally different picture of happiness.