"I have no responsibility to be like what other people expect me to be. It's their mistake, not my failing."

"I'm not a very good scientist. I'm just a very curious person."

"The only way to do something is to do it. Not to talk about it, not to plan it, but to do it."

"I'm not a serious fellow."

"The world is full of people who are trying to figure out what's going on, and they're all wrong."