锲而舍之,朽木不折;锲而不舍,金石可镂。
If you carve and give up, even rotten wood will not break; if you carve without stopping, metal and stone can be engraved.
Plain meaningPersistence makes even the hardest goal yield.
Original context and translation note
English wording on Gu Ren Said is an original reading aid, not a claim that there is only one valid literary translation.