Optimism is invaluable for the meaningful life. With a firm belief in a positive future, you can throw yourself into the service of that which is larger than you are.
樂(lè)觀對(duì)于有意義的生活是無(wú)價(jià)的。堅(jiān)信未來(lái)是積極的，你就可以投身于比你更偉大的事業(yè)中。
書(shū)籍是鏡子，但它們也是窗戶。
You should avoid sloth and unreliability.
Collaboration across borders and cultures is the key to solving global agricultural challenges.