沧海一粟 (cāng hǎi yī sù)

lit. one grain floating on the ocean (idiom); fig. a drop in the ocean

Character breakdown

Usage

个人的力量在自然面前不过是沧海一粟。

The power of an individual is nothing more than a drop in the ocean before nature.

Gèrén de lìliàng zài zìrán miànqián bùguò shì cānghǎiyīsù.