"The greatest discovery of my generation is that man can alter his life simply by altering his attitude of mind"
About this Quote
The sentence is built on a quietly radical premise: history is not only something that happens to people; it’s something people can co-author through perception. That’s the aspirational subtext behind “alter his life.” The word “simply” is doing heavy lifting. It promises a lever that bypasses class, bad luck, illness, discrimination, and the brute facts Adams, as a historian, would know are real. The line flirts with democratic optimism and risks becoming a moral trap: if attitude changes life, then suffering can be read as a failure of mindset.
Context matters. Adams popularized the idea of the “American Dream,” and this quote sits in the same neighborhood: agency, self-revision, upward motion. Read charitably, it’s an antidote to fatalism in a century shadowed by world wars and economic collapse. Read skeptically, it’s the seed of a culture that treats structural problems as personal branding issues. Its durability comes from that tension: it flatters our control while whispering that we’d better earn it.
Quote Details
| Topic | Self-Improvement |
|---|---|
| Source | The Epic of America — James Truslow Adams (1931). Commonly cited as the source of the remark that a person can alter his life by altering his attitude of mind (appears in Adams's book). |
| Cite |
Citation Formats
APA Style (7th ed.)
Adams, James Truslow. (2026, January 16). The greatest discovery of my generation is that man can alter his life simply by altering his attitude of mind. FixQuotes. https://fixquotes.com/quotes/the-greatest-discovery-of-my-generation-is-that-112754/
Chicago Style
Adams, James Truslow. "The greatest discovery of my generation is that man can alter his life simply by altering his attitude of mind." FixQuotes. January 16, 2026. https://fixquotes.com/quotes/the-greatest-discovery-of-my-generation-is-that-112754/.
MLA Style (9th ed.)
"The greatest discovery of my generation is that man can alter his life simply by altering his attitude of mind." FixQuotes, 16 Jan. 2026, https://fixquotes.com/quotes/the-greatest-discovery-of-my-generation-is-that-112754/. Accessed 13 Feb. 2026.







