The beauty of the world has two edges, one of laughter, one of anguish, cutting the heart asunder.
Technology can help us monitor and manage fisheries, but it's our collective will that will drive real change.
现在不是去想缺少什么的时候,该想一想凭现有的东西你能做什么。
"The more that you read, the more things you will know. The more that you learn, the more places you'll go."
The strength of a response tendency depends on the amount of reinforcement received.