The study of black holes has led us to the edge of our understanding, where the known laws of physics break down and new theories must emerge.
对黑洞的研究将我们带到了理解的边缘，在那里已知的物理定律失效，新的理论必须出现。
一切皆为腹地。腹地之大，如同整个世界。
国家是人类社会中最重要的机构，其强弱是社会成败的关键决定因素。
Play is the language of childhood, and books should speak that language too.
Be nice to your children because they are going to choose your nursing home.
我并非一无所有，我拥有自由。
I think the biggest lesson I've learned is to trust your instincts.