Immigration can have positive effects on innovation and productivity.
We must balance the need for energy today with the imperative of protecting the planet for tomorrow.
The best way to predict the future is to create it.
I don’t want to be put in a box.
让孩子笑的最好方法就是像对待大人一样对待他们。
一个奇怪的事实是,关于地球史前条件得出了完全相反的结论,这反映了我们目前知识的不完整状态。
I cannot choose the best。 The best chooses me。