Is she sane? 'asked Mrs Linton, appealing to me.

　　“她神智清楚嗎？”林惇夫人對我說。

　　You will never understand love if you are always sane.

　　永遠那么理智，就永遠不會懂得愛情了。

　　What is a sane standard of production and consumption?

　　生產(chǎn)和消費的合理標(biāo)準(zhǔn)究竟如何？