books.google.co.jp - Mary Stein took up aikido in her mid-fifties and quickly learned what it really means to face danger—both external and internal. In this powerful collection of short essays, she vividly describes learning an active and spirited defense on the mat, in the process uncovering a lifetime of habitual tensions...http://books.google.co.jp/books/about/The_Gift_of_Danger.html?hl=ja&id=Dq4FFJk-EZwC&utm_source=gb-gplus-shareThe Gift of Danger
