In an interview with Soichi OYA when he was sixty, he said he wrote two to three hundred tanka (a thirty one-syllable Japanese poem) each day and had written five to six hundred thousand tanka by then.
60歳のとき受けた大宅壮一のインタビューにおいて、1日に2、3百首の短歌を詠み、これまで5、60万首詠んだと語ったという。