【为天地立心,为生民立命,为往圣继绝学,为万世开太平。】——宋·张载赏评:这四句话,简明地说出了人的特点,人之所以为人,即“人之所以异于禽兽者”。第一句“为天地立心”很费解。其实,并不费解。在一个没有人的世界中,如月球,虽然也有山河大地,但没有人了解,没有人赏识,这就是“长如夜”。自从人类登上月球,它的山河大地方被了解,被赏识。地球和其他星球的情况,也是如此。地球上的山河大地是自然的产 [For the world to establish their hearts, for the people of life, for the Holy Ghost, for the world to open the peace. 】 - Song Zhang Zai Appraisal: These four sentences, concisely out the characteristics of people, people are people, that is, “people are different from the beast”. The first sentence “for the world heart ” very hard to understand. In fact, do not understand. In a world without people, such as the moon, although there are mountains and rivers, but no one knows, no one appreciated, this is “long as the night.” Since humanity ascend the moon, its great rivers and lakes have been known and appreciated. The same is true of the earth and other planets. Earth and mountains and land are natural products