Hieratic life and writing experience best answer his enigma of renouncing the family.

他后半生苦行僧生活及弘法著述活动,应是他出家之谜最好答案。

Russia is a riddle wrapped in a mystery inside an enigma.

俄罗斯是被包藏在一个闷葫芦里面神物体之中谜。

It is an enigma to me.

它对我来说是个迷。