Food security is the cornerstone of national security.

The truth is, I don't know where my ideas come from. What I do know is that they come when I'm not trying to think of them.

卖出股票的最佳时机几乎永远不会到来。

The greatest poems are those that speak to the heart.

我们手里的金钱是保持自由的一种工具；我们所追求的金钱，则是使自己当奴隶的一种工具。