做学问,首先要去做,去认真地学习和研究。对于学习和研究的对象,不仅要知其然,还要知其所以然。这就必须有刻苦钻研的精神。刻苦钻研,就要聚精会神,专心致志,决不能像孟子批评学习三心二意的人所假定的,向全国下棋高手学棋,虽然在听讲,但思想开小差,“一心以为有鸿鹄将至, Doing knowledge, we must first do, to seriously study and research. For the study and study of the object, not only to know it, but also know why. This must have a hard-working spirit. Hard study, we must focus on, concentrate on, must not be like Mencius criticized the study of half-hearted people assumed, chess master chess to the country, although listening, but the idea of ​​small, ”