可能世界是被规定的,而不是通过强大的望远镜发现的。
When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become.
If you're trying to achieve, there will be roadblocks. I've had them; everybody has had them. But obstacles don't have to stop you. If you run into a wall, don't turn around and give up. Figure out how to climb it, go through it, or work around it.
There are no shortcuts in technological innovation. We must be down-to-earth and persistent.