I am 山下 伸男.
I am Japanese.
I live in Tokyo.
I was born in Hikone, Shiga prefecture in 1988.
I am interested in Mathematics, Physics, Math on the Web and IT.
I like these sentences:
Mathematics is the queen of sciences.
Man who laugh with water exists.
Man who feel sad with brocade exists.
Genius is one percent inspiration and ninety-nine percent perspiration.
Peace of mind.