臣民的政治自由是每个人对自己安全感的平静心态。

大自然不在乎你的计划。它会考验你，你必须做好准备。

If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

In science, the most important quality is intellectual honesty.

Sometimes life hits you in the head with a brick. Don't lose faith.

I'm the type of guy that'll make you wanna slap your grandmama.

The photograph isn't good enough. It's not radical enough.