His students however had a hard time taking notes during his class since he had cursive handwriting , and moreover , being well-built , he often covered the blackboard with his big head . ただし、黒板の文字は草書での走り書き、しかも体格ががっちりして頭が大きいのでその文字を覆ってしまい学生達はノートを取ることが難しかったという。