Science is about understanding the world, and engineering is about changing it.

I'm not perfect, and I don't pretend to be.

O sonho é a matéria-prima da realidade.

你的梦想是有效的，追逐它们。

We don't inherit leather from our ancestors—we borrow it from our children.

You have to be able to laugh at yourself, to not take yourself too seriously.

I think we all have a little bit of that fear of failure, and that's what drives us to succeed.