Time begins in BIGBANG and ends at an unknown destination, and civilization is only a moment. The latter sentence is also the same feeling, that is, let time have life, so as to reflect the significance of time and time.

This sentence comes from the famous saying of the 17th century French mathematician Pascal. The original sentence is: "Give life to time, not life to time." Liu Cixin changed it to "give civilization to the years, not to civilization" in "Three-body". It not only keeps the connotation of the original sentence, but also makes this sentence have philosophical thinking and implication at the social and humanistic level.