发现恒星围绕银河系中心的超大质量黑洞运行是天体物理学的一个转折点。

"The essence of acting is to live truthfully under imaginary circumstances."

The only way to succeed is to be completely honest with yourself and others.

The sea, the sea, the sea. It rolled and rolled and called to me. Come in, it said, come in.

一个科学家的真正价值是由超越他的学生数量来衡量的。