You must put things side by side to know which is longer.

Sources and attribution

Unattributed Traditional proverb; individual author and earliest use unknown.

Source: National Institute of Korean Language — Korean Basic Dictionary , Korean Basic Dictionary proverb lookup: 길고 짧은 것은 대어 보아야 안다

Origin: Korean proverb; individual author and earliest origin unknown

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Traditional Korean saying. English rendering and explanation by Quotations; not copied from the dictionary’s definitions. The reference documents usage, not first authorship.

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