The word 诚实 (chéngshí, meaning "honest") is formed by combining two independent characters, each contributing a essential layer to the concept. The first character, 诚 (chéng), carries the core meaning of sincerity, genuineness, and truthful intent from the heart. It is then paired with 实 (shí), which denotes substance, solidity, fact, and reality. Therefore, the compound does not merely repeat an idea but constructs it: 诚实 conceptually fuses inner sincerity and truthful intention (诚) with outward factual accuracy and tangible truthfulness (实), forming the complete, integrated virtue of honesty that is both morally sincere and materially true.