"In the end, we will remember not the words of our enemies, but the silence of our friends."
科学家与公众之间的对话对于负责任的创新至关重要。
The past is a shadow that shapes the present.
"We live in a world where the past is always present, and the future is always uncertain."
应该引导孩子通过自己的活动去发现真理。