The scholar who does not go out and knows everything about the world first comes from Chapter 47 of "Laozi": "If you don't leave the house, you can know the world; if you don't follow the rules of the house, you can know the way of heaven." Far away, the knowledge is very little. This is because the sage knows without walking, understands without seeing, and achieves without doing." This sentence means: "Without going out of the house, you can know the affairs of the world through the Tao; without looking out the window, through the Tao You can know the laws of nature. The farther you go, the less you know about the Tao." As the saying goes, "A scholar can know the world's affairs without going out." This is because scholars have mastered relevant knowledge through learning, and what Laozi said is not Knowing the world's major events right away from home is obviously far beyond the realm of scholars and beyond book knowledge. Laozi emphasized the benefits and importance of knowing the Tao and emphasizing the Tao, and at the same time told the world the correct way to know the Tao. As long as you practice it in life If you always observe and understand with your heart, you will be able to discover and understand the Tao, and you will be able to become a wise man like Zhuge Liang. "You can know without doing it, you can understand without doing it, and you can do it without doing it." Original translation: Without going outside, you can know the world's affairs through the Tao Without looking out the window, you can know the laws of nature through the Tao. The farther you go, the less you know about the Tao. Therefore, the sage knows without traveling far, understands without seeing with his own eyes, and succeeds without insisting on rash actions. Hu: refers to Door, window: refers to the window.