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Daily Inspiration Quote by Henry A. Kissinger

"To be absolutely certain about something, one must know everything or nothing about it"

About this Quote

Certainty is Kissinger’s favorite warning label, printed in the small type of statecraft. “To be absolutely certain about something, one must know everything or nothing about it” isn’t a cozy meditation on humility; it’s a practitioner's diagnosis of how power actually thinks. The line turns absolute confidence into a tell: either you’re omniscient (impossible) or you’re ignorant enough not to notice what you’ve missed. In diplomacy, that gap between what leaders know and what they insist they know is where catastrophes breed.

The construction is deliberately binary, almost clinical. “Everything or nothing” compresses the messy middle of partial information into a stark moral of method: serious actors live in uncertainty, so anyone performing total conviction is either bluffing or blind. Kissinger’s subtext is also self-exonerating. If outcomes hinge on unknowable variables, then “mistakes” can be reframed as the price of navigating a world too complex for clean accountability. It’s a sentence that can scold hawkish overreach while quietly insulating the decision-maker from the expectation of perfect foresight.

Context matters: Kissinger’s career unfolded in the fog of the Cold War, where intelligence was incomplete, adversaries strategic, and time compressed. Detente, secret channels, the opening to China, Vietnam’s grim arithmetic - each depended on choosing under ambiguity, then retrofitting those choices into a coherent narrative. The quote works because it flatters skepticism and indicts dogma, but it also reveals the real Kissingerian ethic: not certainty, but control of uncertainty’s optics.

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To be absolutely certain about something, one must know everything or nothing about it
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Henry A. Kissinger (May 27, 1923 - November 29, 2023) was a Statesman from Germany.

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