The only thing that matters is the work. If you focus on the work, everything else will fall into place.

No matter how hard it is, we will never give up.

I don't have time to hate people who hate me, because I'm too busy loving people who love me.

The existence of the natural world is the same kind of fact as the existence of any proposition.

The real tragedy of the poor is that they can do nothing but wait for the rich to give them something.

黑洞不仅仅是破坏性的怪物，它们在塑造星系中起着关键作用。