Man's freedom is his limitation.

Sustainability isn't an option; it's a responsibility we owe to future generations.

如果两方发生争执，不要争吵，让第三方来判决。

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.

在石油和天然气行业，效率和责任必须齐头并进。