 According to Mencius, certain emotions are aroused by innately given psychological orientations of the mind that flow spontaneously from the original nature of human beings. The four moral sprouts (siduan) are such emotions that deserve careful cultivation because their genuineness derives from human nature. Mencius (2A6, 6A6) believes that emotions, like living organisms, have roots and foundations, grows and expands, and reaches out to realize their natural potential. They begin and grow like a fire that starts to spark and a spring that breaks out (2A6). They should not be obstructed or stopped. They should be developed and cultivated to realize their full potential. This is Mencius’s moral-psychological nativism that highlights the affective and generative moral sprouts at the foundation of the heart-mind and human nature (Seok 2008).