- 沧海一粟 cānghǎiyīsù a drop in the oceanlit. a single grain of millet in the vast sea; used to describe something that is extremely small or insignificant in the grand scheme of things
- 太仓一粟 tàicāngyīsù a drop in the oceanliterally 'a single grain in a vast granary'; describes something extremely small or insignificant compared to the whole