https://www.youtube.com/watch?v=2t2Wn2gOnwY



https://ja.wikipedia.org/wiki/%E3%83%81%E3%83%A5%E3%83%BC%E3%83%
AA%E3%83%83%E3%83%97%E3%83%BB%E3%83%95%E3%82%A3%E3%83%
BC%E3%83%90%E3%83%BC_%E8%82%96%E5%83%8F%E7%94%BB%E3%81%AB%E7%A7%98%E3%82%81%E3%81%9F%E6%84%9B
..............................................watch?v=Uaqx87S5K2o


https://upload.wikimedia.org/wikipedia/commons/d/d7/Ritratto_di_agnolo_doni.jpg