The secret of change is to focus all of your energy, not on fighting the old, but on building the new.
改变的秘诀在于集中你所有的精力,不是对抗旧的,而是建设新的。
记忆是编织民族历史的线,没有它,我们将注定重复同样的错误。
对我们星球的最大威胁是相信别人会拯救它。
粮食安全始于赋予粮食种植者力量。
I believe in the long-term growth of the United States.
The greatest theorems often arise from questioning the obvious.