贫穷的循环始于对希望的放弃。
The cycle of poverty begins with the abandonment of hope.
You think it will never happen to you, that it cannot happen to you, that you are the only person in the world to whom none of these things will ever happen, and then, one by one, they all begin to happen to you, in the same way they happen to everyone else.
Collaboration between scientists is key to solving complex problems.
征服并不足以,还必须学会诱惑。