The key ingredients of happiness could not be material or aesthetic, but must always stubbornly psychological.

Sustainability isn't a trend—it's our responsibility to the planet and future generations.

States are inherently aggressive and expansionist.

市场永远不会错——意见往往是错的。

做出伟大工作的唯一途径是热爱你所做的事情。

I like talking to a brick wall, it’s the only thing in the world that never contradicts me.

The only limit to our realization of tomorrow is our doubts of today.

It is wrong to have an ideal view of the world. That's where the mischief starts. That's where everything starts unravelling.