正是通过观察和反思的力量，人们才能找到方法。所以我们必须不断挖掘和钻研。
It’s on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.
Agriculture technology is the key to solving food security issues, we must continuously innovate and promote agricultural modernization.
This is a group with many gifts. I'm sure one of your gifts is the gift of a smart and capable brain. I'm confident that's the case because admission is competitive and if there weren't some signs that you're clever， the dean of admission wouldn't have let you in.
外交需要保持冷静和理智，不受情绪和个人偏见的影响。
有些事情，无论我们多么努力，都无法使自己相信。