The history of life is a history of innovation.
I'm the walking dead, but I'm just a talking head, a zombie floating around, but I got a homie, underground.
It’s not supposed to be easy. Anyone who finds it easy is stupid.
The joy of discovery in mathematics is unparalleled.
孩子不是从更重要的工作中分心的事物,他们本身就是最重要的工作。