It's dogged as/that does it. 1. 世上无难事, 只怕有心人。 习惯用语It's dogged that does it.1.[谚]有志者事竟成; 天下无难事, 只怕有心人。It's dogged as does it.1.[谚]有志者事竟成; 天下无难事, 只怕有心人。