describing a person who is spotless, pure, and of impeccable character

他一生为官清正，人品如冰壶秋月，备受后人敬仰。

jade ice jug and autumn moon, an idiom from a poem by Su Dongpo symbolizing extreme clarity and crystalline purity

此处的景色清雅脱俗，真有冰壶秋月之感。