Excellent detectives are all skilled at deducing the whole picture from tiny clues.
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From 《韩非子·说林上》 (Han Feizi, Forest of Persuasions): 圣人见微以知萌，见端以知末 - "the sage sees the faint sign and knows what is sprouting; sees the beginning and knows the end." Han Fei used the idiom to praise foresight; it has been a staple of Chinese strategic thought ever since.
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见 (see) + 微 (faint/tiny) + 知 (know) + 著 (obvious/manifest) → "see-tiny → know-obvious." The two halves are deliberately opposed: tiny vs. manifest, signal vs. result.
