孟子的仁学思想是成体系的。它以“仁”为其核心,从人“心”的角度追寻“仁”之根源,以“四德”、“五伦”为其主要内容来支撑现实纲常伦理。这样,孟子以性善论为理论基础,在丰富和发展了孔子仁学思想的基础上,建构起了更为完善和系统的仁学思想大厦。 Mencius’s benevolent thinking is a system. It takes “Ren ” as its core and pursues the root of “Ren ” from the perspective of people “Heart ”, and supports the reality with “Four Decades ” and "Five Lunas Common ethics. In this way, Mencius, based on the Theory of Good Nature, enriches and develops the thought of Confucian benevolence and constructs a more complete and systematic building of benevolent thinking.