If you try and take a cat apart to see how it works, the first thing you have on your hands is a non-working cat.

It's not the fall that kills you; it's the sudden stop at the end.

The hardest assumption to challenge is the one you don't even know you are making.

The quality of any advice anybody has to offer has to be judged against the quality of life they lead.

My universe is my eyes and my ears. Anything else is hearsay.

I may not have gone where I intended to go, but I think I have ended up where I intended to be.

The most misleading assumptions are the ones you don't even know you're making.

I'd take the awe of understanding over the awe of ignorance any day.

If they don’t keep exercising their lips, he thought, their brains start working.

We are stuck with technology when what we want is just stuff that works.

I don't say that I don't believe in God because that implies that there is a God for me not to believe in.

I refuse to answer that question on the grounds that I don't know the answer

Time is an illusion. Lunchtime doubly so.

We are not an endangered species ourselves yet, but this is not for lack of trying.

I love deadlines. I like the whooshing noise they make as they go by.

We can't win against obsession. They care, we don't. They win.

Don't believe anything you read on the net. Except this. Well, including this, I suppose.

He was a dreamer, a thinker, a speculative philosopher... or, as his wife would have it, an idiot.

I seldom end up where I wanted to go, but almost always end up where I need to be.