Behavior is determined by the current stimulus situation and past reinforcement history.

"Die größte Gefahr ist die Gleichgültigkeit."

理解计算的限制与理解计算的能力同样重要。

The future of energy lies in diversification and adaptability.

Paper has been the carrier of human knowledge for centuries. Our duty is to ensure it continues for centuries more.

The most powerful weapon you have is your voice, use it to inspire, to heal, and to change the world.

全球粮食安全始于地方行动与合作。