A map of the world which does not include Utopia is not worth even glancing at.
发愤研究学问,常常忘记吃饭,一旦有所收获便又高兴地忘记了忧愁,连自己的渐趋衰老也没有感觉到。
Success is not measured by profits alone, but by the positive impact we have on society.