True happiness comes from inner satisfaction.

认为世界上只有一种真理，而自己正掌握着它，在我看来这是世界上所有邪恶最深的根源。

Sustainability is not an option; it's a responsibility we owe to future generations.

Every seed planted is a step toward a more sustainable future.

All men have the stars， but they are not the same things for different people。 For some， who are travelers， the stars are guides。 For others they are no more than little lights in the sky。 For others， who are scholars， they are problems。 For my businessman they were wealth。 But all these stars are silent。 You – you alone – will have the stars as no one else has them.