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Action Quote by Thucydides

“For if many ill-conceived plans have succeeded through the still greater lack of judgment of an opponent, many more, apparently well laid, have on the contrary ended in disgrace. The confidence with which we form our schemes is never completely justified in their execution; speculation is carried…” quote by Thucydides
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“For if many ill-conceived plans have succeeded through the still greater lack of judgment of an opponent, many more, apparently well laid, have on the contrary ended in disgrace. The confidence with which we form our schemes is never completely justified in their execution; speculation is carried on in safety, but, when it comes to action, fear causes failure.”

Thucydides

About This Quote

Source Historical Text: History of the Peloponnesian War, 5th century BC

Overconfidence in plans often leads to failure; fear and poor judgment undermine execution.

In simple terms: Overconfidence and fear cause plans to fail.

Key Takeaway

Check assumptions and prepare for uncertainty.

Themes

strategy confidence fear

Mood

analytical pragmatic

Type

advice philosophical

When to use this quote

  • military planning
  • business strategy
  • personal projects

Key Concepts

risk assessment decision making

Questions to Reflect On

  • What safeguards can reduce overconfidence?
  • How to balance confidence with caution?
A Different Perspective

Overconfidence can sometimes drive bold breakthroughs.

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