The energy crisis is a solvable problem—if we act now.
你必须准备好受苦并享受这种痛苦。
We are all creatures of our landscape; it dictates behavior and even thought in the measure to which we are responsive to it.
Optimism is a strategy for making a better future. Because unless you believe that the future can be better, you are unlikely to step up and take responsibility for making it so.
Sustainability is no longer an option; it's a business imperative for long-term survival.
人类思维是一个复杂的系统,理解它需要多学科的方法。