「一人(ひとり)で掘る(ほる)なんて頭が(あたまが)おかしい」とあざ笑った(あざわらった)が、了海は信念で(しんねんで)何年も(なんねんも)掘り(ほり)続けた

Ryokai headed toward the giant rocky mountain completely alone, armed with only a hammer and a chisel. Day after day, he kept chipping away at the cold rock. The surrounding people laughed, saying 'Digging a tunnel alone is crazy,' and nobody tried to help, but Ryokai, possessing a strong faith, kept digging for decades.