When we talk about food security, we're really talking about national security.

The sustainable development of the coal industry requires the coordinated efforts of policy, technology, and the market.

"The only thing that is truly meaningful is connection."

War is peace. Freedom is slavery. Ignorance is strength.

I don't count my sit-ups. I only start counting when it starts hurting.

我们对宇宙了解得越多，就越意识到我们还有多少尚未发现的东西。