I was thinking around the clouds, and I was hoping you wouldn't bring me down. And I was wandering if you would come with me. But then I realized that you're dirty

The history of thought may be summed up in these words it is absurd by what it seeks and great by what it finds

Man's greatness lies in his power of thought

If it can be conceived at all - it must exist

The jaws of power are always open to devour, and her arm is always stretched out, if possible, to destroy the freedom of thinking, speaking, and writing

The best way of forgetting how you think you feel is to concentrate on what you know you know

I do this real moron thing, it's called thinking, and I'm not a very good Amercian because I like to form my own opionions

I don't think I realized that the cost of fame is that it's open season on every moment of your life.

There are two ways to slide easily through life: to believe everything or to doubt everything. Both ways save us from thinking

All men think all men mortal, but themselves