The city is the greatest invention of mankind.

对最多人的最大利益是衡量对与错的标准。

The ratio of positive to negative emotions that predicts flourishing is about 3 to 1. Above that ratio, people tend to flourish; below it, they tend to languish.

故事永远不会结束；它只是停止。

建筑应该像一朵云——存在但不沉重。