1, because we are usually not quiet enough to observe the subtle changes in people's hearts. Here, "conscience" is the nature of destiny, and the noumenon of my heart can be regarded as the sincerity and nature of human beings. Moreover, all foreign ministers and minds are derived from true temperament, and the so-called phase is born from the heart. Hua Yanjing said: Ideal exists and knowledge changes. Heart here refers to sincerity, knowledge refers to Araya's knowledge, and he is open-minded. Since it is sincerely revealed, there is no truth in my heart that I don't understand myself. Knowing from sincerity is knowing from conscience.
2, the idea is not formed by past habits, but out of thin air, without reason, suddenly appear, and then suddenly disappear. The Buddha said in the scriptures, "Once born, it will be destroyed everywhere." As for good and evil, there is no good and evil in the heart, it is in the middle. However, due to our respective persistence, there is a distinction between good and evil, and goodness and sincerity are more compatible. The doctrine of the mean is very similar to the doctrine of the mean, that is, impartial.
I don't consider all good and evil. Although I can't reach it, my heart yearns for it.