The world is full of people who will tell you what you can't do. What you must do is find the ones who will tell you what you can.
当我看着这个世界时，我是悲观的，但当我看着人们时，我是乐观的。
The only limit to our realization of tomorrow will be our doubts of today.
粮食安全的未来取决于我们跨国界适应和合作的能力。