译文：以前的过失，要全部拔掉，犹如昨天的你已经死去；你从今以后，要全新做人，犹如今天的你获得新生。

I must study politics and war that my sons may have liberty to study mathematics and philosophy.

The mind is not a passive mirror but an active participant in life.

农业创新不仅仅是技术问题，更是思维方式的转变。

Technology has leveled the playing field for individual traders.