The authors have presented an unpublished manuscript by Nikolai Aleksandrovich Bernstein written in the form of a diary in 1949. Bernstein focused on the concept of time as a coordinate in four-dimensional space and discussed a variety of issues, including the definition of time, its measurement, time travel, asymmetry of the past and future, and even linguistics. In particular, he offered a definition of life tightly linked to the concept of time. Overall, this manuscript offers a glimpse into Bernstein’s thinking, his sense of humor, and his sarcasm, intimately coupled with the very serious attitude to scientific discourse.

作者介绍了尼古拉·亚历山大·伯恩斯坦（Nikolai Aleksandrovich Bernstein）于1949年以日记形式撰写的未出版手稿。伯恩斯坦（Bernstein）着重探讨了时间作为四维空间坐标的概念，并讨论了许多问题，包括时间的定义，测量，时间旅行，过去和未来的不对称甚至语言学。特别是，他提供了与时间概念紧密相关的生活定义。总体而言，这份手稿一窥伯恩斯坦的思想，他的幽默感和讽刺意味，以及对科学话语的非常认真的态度。