人总是在时间中行走，在空间中追寻。时间分过去、现在和将来，空间有故乡、祖国和世界。时间和空间无限，无限的时空成为物质的存在形式，也成为精神的长路。 人是本能的，也是理性的。理性与本能都成为人进与退、取与弃、希望与失望的内在根据。本能地追求，理性地放弃；本能地退却，理性地进取；本能陷入痛苦，理性拯救之；理性地放弃，本能却渴望之。这都是人生过程的必然取向。自由是人类一直追求的主题，但人至今依然行走在自由的边缘。然而，人并不因为相对自由而满足自由，也并不因为没有绝对自由而放弃自由。(People always walk through time and seek in space. Time is divided into past, present and future, as for space there are hometown, motherland and the world. The infinite time and space have become the existence form of matters and the road of spirit. People are both instinctive and rational. Rationality and instinct are the inner basis of forward and backward, accept and reject, hope and disappointment of people. To pursue instinctively, to give up rationally; to retreat instinctively, to progress rationally; to be in pain instinctively, to save oneself rationally; to give up rationally, but to desire instinctively. These are the inevitable orientation of life process. Freedom has been the subject pursued by human all the time, but people still walk alongside the edge of freedom in these days. Yet, people will not be satisfied with freedom in comparison with freedom, and will not give up freedom due to their lack of absolute freedom.)