睹微知着

Explanation: Micro: small; with: significant. See a small sign will know the nature and trends. 　　Source: "Three Kingdoms Zang Hong Chuan Lu Bu": "servant in the insensitive, but also see the end of the original elements can not, see Small clues, steal the heart of master degree., But does that saying three sons should die in the penalty when the punishment Kazuya.?"