The reader is offered fragments from the archive of Mikhail Aleksandrovich Lifshitz (1905-1983). Notes made for himself, not intended for publication, confirm Pushkin’s observation: “Following the thoughts of a great man is the most entertaining science.” The book consists of three parts. The first part, “An ideal always has a certain reality..”, is published for the first time. The second part, “Now it seems to you that there is no truth...” was first published in the magazine “Free Thought,” 1992, No. 6, p. 99-112. The third part of “Pro domo sua” was first published in the magazine “UFO”, 2007, No. 88, p. 80-114.