Leisure is the mother of philosophy.

The concept of a legal system presupposes the concept of a rule.

The will to learn is an intrinsic motive, one that finds both its source and its reward in its own exercise.

不要因为结束而哭泣，微笑吧，为你的曾经拥有。

The circular economy isn't an option—it's the only way forward for industries willing to thrive in the next decade.

能源转型不仅仅是能源的转换，更是以更少排放提供更多能源。