In all affairs， it's a healthy thing now and then to hang a question mark on the things you have long taken for granted.

牛、猪、战争和巫术并非任意的文化偏好，而是对物质条件的适应。

诗歌是灵魂的语言，灵魂用图像说话。

Investors should focus on asset allocation rather than market timing.