Mencius once said in "On the Confession": "The joy of the righteousness is my heart, and the joy of the concubine is my mouth. " This is a truthful, subtle, and quite inspiring mind. The practice of life has also been repeated Tell us that the "reasonableness" of "pleasant heart" is always easy to explain in simple terms, such as "church", which is a food like "mutton" such as beef and mutton, otherwise, it is likely to be a speaker, a listener, Or the speaker is hoarse and the listener is drowsy. After all, the infection is not relying on loud voices or the power of the microphone, but it should be as dazzling as a peacock opening the screen, grab the eye, and give people a beautiful enjoyment. Inspiration. What does this text emphasize? ['Rely on infection, please be happy with infection.', 'The first essence of reason is state the truth.', 'Only true reason can make people believe.', 'Talk about art and make the reasoning easy to accept.']