We demand rigidly defined areas of doubt and uncertainty!

Let the past hold on to itself and let the present move forward into the future.

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

I rarely end up where I was intending to go, but often I end up somewhere I needed to be.

Goosnargh," said Ford Prefect, which was a special Betelgeusian word he used when he knew he should say something but didn't know what it should be.

The little waiter's eyebrows wandered about his forehead in confusion.

He had a tremendous propensity for getting lost when driving. This was largely because of his method of “Zen” navigation, which was simply to find any car that looked as if it knew where it was going and follow it. The results were more often surprising than successful, but he felt it was worth it for the sake of the few occasions when it was both.