愚公山を移す

Calque of Literary Chinese 愚公移山 (yúgōngyíshān, literally “stupid old man moves mountains”), an anecdote in the Chinese Taoist work Liezi.^[1][2]

In the story, two large mountains stand before the house of a character named 愚公 (literally "stupid old man"), impeding access, so the character and his family begin moving the mountains. A different character portrayed as a clever wag derides the family for their foolishness in moving the mountains instead of their house, but God hears about them and is so impressed with their ambition and dedication that he arranges to have the mountains moved. (See Citations:愚公移山 for the full story.)

• IPA^(key):

愚(ぐ)公(こう)山(やま)を移(うつ)す • (gukō yama o utsusu) 

1. perseverance and hard work can overcome any obstacle; where there's a will, there's a way