The challenge of our time is to build an economy that works for everyone, not just the privileged few.
我们时代的挑战是建立一个为所有人服务的经济，而不仅仅是少数特权阶层。
Technology is not just a tool. It can give learners a voice that they may not have had before.
The best way to cheer yourself up is to try to cheer somebody else up.
可持续农业不是一种趋势，而是我们星球唯一的前进道路。
The teacher's task is not to implant facts but to place the subject to be learned in front of the learner and, through sympathy, emotion, imagination, and patience, to awaken in the learner the restless drive for answers and insights which enlarge the personal life.
In the search for truth, there are no final answers, only better questions.
You are born different, and you are not destined to be drowned in the crowd.