"No human being is constituted to know the truth, the whole truth, and nothing but the truth; and even the best of men must be content with fragments, with partial glimpses, never the full fruition"
About this Quote
The structure does a lot of the persuasion. “The truth, the whole truth, and nothing but the truth” echoes courtroom language, then Osler yanks it into the clinic, where bodies don’t testify cleanly and causes rarely stand alone. By stacking absolutes, he dramatizes the temptation to overclaim. Then he replaces that totalizing dream with a series of modest images: “fragments,” “partial glimpses.” It’s not defeatism; it’s epistemology with a pulse. The best minds aren’t exempt from limitation, he insists, which doubles as a critique of professional arrogance. Even expertise only upgrades the quality of your fragments.
Context matters: late-19th and early-20th century medicine was racing forward (germ theory, lab diagnostics) and generating new confidence. Osler’s subtext is a plea to keep uncertainty institutionalized, to treat knowledge as provisional and patient-specific. “Must be content” sounds austere, but it’s also liberating: if the full fruition is unreachable, then medicine becomes a practice of careful approximation, honesty about doubt, and continual revision. In an era that still worships “the answer,” Osler offers something harder and more responsible: disciplined incompleteness.
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Citation Formats
APA Style (7th ed.)
Osler, William. (n.d.). No human being is constituted to know the truth, the whole truth, and nothing but the truth; and even the best of men must be content with fragments, with partial glimpses, never the full fruition. FixQuotes. https://fixquotes.com/quotes/no-human-being-is-constituted-to-know-the-truth-97903/
Chicago Style
Osler, William. "No human being is constituted to know the truth, the whole truth, and nothing but the truth; and even the best of men must be content with fragments, with partial glimpses, never the full fruition." FixQuotes. Accessed February 2, 2026. https://fixquotes.com/quotes/no-human-being-is-constituted-to-know-the-truth-97903/.
MLA Style (9th ed.)
"No human being is constituted to know the truth, the whole truth, and nothing but the truth; and even the best of men must be content with fragments, with partial glimpses, never the full fruition." FixQuotes, https://fixquotes.com/quotes/no-human-being-is-constituted-to-know-the-truth-97903/. Accessed 2 Feb. 2026.











