解释：所谓把粮食积存在取之不尽的粮仓里，就是要努力从事粮食生产。

技术应该解决实际问题，而不仅仅是创造新玩具。

今天种下的每一棵树都是对明天的承诺。

"The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity."

你不必做到完美，你只需要开始行动。