The most sustainable building is the one that already exists.
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
领导力是激励他人看到自己内在的潜力。
我们要做的是让电池更安全、更高效、更环保。
The most successful modern states are those that have been able to harness the power of the market while maintaining a strong state that can provide public goods and regulate private activity.