In Maxim Gorky's book "Mother," the quote "One to become, against his will, is harmful ... in this fierce life" highlights the idea that forced change or transformation can be detrimental. It emphasizes that genuine growth and development should come naturally and voluntarily, rather than through coercion. The harsh realities of life often demand resilience and authenticity, not imposed alterations that may damage a person's true nature.

The book explores themes of struggle, resistance, and the importance of personal integrity amid life's hardships. Gorky suggests that true strength lies in genuine inner conviction, and that forced or unnatural attempts to change oneself can be harmful, particularly in a tumultuous world where authenticity and moral resilience are vital for survival and progress.