"Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events"
About this Quote
The subtext is classic Heinlein: a suspicion of emotional posturing disguised as realism. Pessimism can feel like intellectual rigor, but it often functions as preemptive self-protection, a way to avoid disappointment by never wagering hope. Optimism, in his framing, isn't naivete so much as a chosen posture toward uncertainty - less about prediction, more about stamina. "Has more fun" sounds casual, even unserious, and that's the point. He punctures the grim prestige pessimism can carry by measuring life in lived experience, not forecasts.
The kicker is the final clause: "neither can stop the march of events". It's a bracing demotion of attitude to what it really is: commentary, not leverage. In the mid-century Heinlein world - shaped by war, nuclear dread, and rapid technological acceleration - history doesn't ask your permission. You can brood accurately or you can engage imperfectly, but either way the clock keeps moving. The quote's intent isn't to sell optimism as truth; it's to recommend it as a better operating system when control is limited and time is not.
Quote Details
| Topic | Optimism |
|---|---|
| Source | Time Enough for Love (1973) — aphorism appears in the 'Notebooks of Lazarus Long', attributed to Lazarus Long (character created by Robert A. Heinlein). |
| Cite |
Citation Formats
APA Style (7th ed.)
Heinlein, Robert A. (2026, January 18). Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events. FixQuotes. https://fixquotes.com/quotes/dont-ever-become-a-pessimist-a-pessimist-is-1458/
Chicago Style
Heinlein, Robert A. "Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events." FixQuotes. January 18, 2026. https://fixquotes.com/quotes/dont-ever-become-a-pessimist-a-pessimist-is-1458/.
MLA Style (9th ed.)
"Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events." FixQuotes, 18 Jan. 2026, https://fixquotes.com/quotes/dont-ever-become-a-pessimist-a-pessimist-is-1458/. Accessed 12 Feb. 2026.








