A smooth sea never made a skilled sailor

Meaning: Hardship and challenges are what build true expertise and resilience.

Origin: A traditional seafaring saying: only rough weather teaches the skills a sailor needs. It is widely attributed to Franklin D. Roosevelt, but no reliable record shows him coining it, and versions are older than he was.

Equivalents in French, Spanish, and Japanese

  • French: Une mer calme n'a jamais fait un bon marin (literally: A calm sea never made a good sailor)
  • Spanish: Un mar en calma nunca hizo un marinero experto (literally: A calm sea never made an expert sailor)
  • Japanese: 穏やかな海では優れた船乗りは育たない (Odayaka na umi de wa sugureta funanori wa sodatanai) (literally: A skilled sailor is not raised in a calm sea)

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