景物依旧，人事已非，一切事情都完了，想要说话，眼泪却先流下来

Sometimes the hardest thing and the right thing are the same.

"Science is not just a collection of facts, but a way of thinking."

I am not lonely. I am alone. There is a difference.

We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.

Materials speak their own language; our job is to listen and interpret.