"No man really knows about other human beings. The best he can do is to suppose that they are like himself"
About this Quote
The intent feels practical, even moral. Steinbeck wrote obsessively about communities under pressure - migrant workers, small towns, families in crisis - where survival depends on cooperation and where misjudging someone can be costly. In that world, “knowing” another person isn’t a romantic ideal; it’s a social currency people spend recklessly. By insisting we can’t actually possess another person’s interior life, he undercuts the authority of judgment: the neighbor’s certainty, the boss’s diagnosis, the crowd’s verdict.
The subtext is double-edged. If we assume others are like ourselves, we can stretch toward compassion: maybe their anger is fear, maybe their stubbornness is pride, because we recognize those impulses in our own chest. But the same move rationalizes cruelty. We impute motives that flatter our worldview, and then punish people for failing to match it.
Steinbeck’s genius here is rhetorical restraint. He doesn’t prescribe a fix; he exposes the mechanism. The line leaves you with an uneasy question: when you claim to “know” someone, whose portrait are you really describing?
Quote Details
| Topic | Wisdom |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Steinbeck, John. (2026, January 17). No man really knows about other human beings. The best he can do is to suppose that they are like himself. FixQuotes. https://fixquotes.com/quotes/no-man-really-knows-about-other-human-beings-the-28818/
Chicago Style
Steinbeck, John. "No man really knows about other human beings. The best he can do is to suppose that they are like himself." FixQuotes. January 17, 2026. https://fixquotes.com/quotes/no-man-really-knows-about-other-human-beings-the-28818/.
MLA Style (9th ed.)
"No man really knows about other human beings. The best he can do is to suppose that they are like himself." FixQuotes, 17 Jan. 2026, https://fixquotes.com/quotes/no-man-really-knows-about-other-human-beings-the-28818/. Accessed 18 Feb. 2026.












