He is a workaholic because he always thinks that happiness means doing better than others, performing more prominently than others, and achieving greater results than others. (think of… as)
He is a workaholic because he has always believed that happiness is better than others, more prominent than others, and greater achievement than others. (think of ... as)
He is a workaholic, because he always thinks that happiness is to do better than others, perform better than others, and achieve greater results than others. (think of … As)<br>