It's different, but it's very pretty out here. I suppose they are going to make a big deal of all this.

There are two of them up here.

I fully expected that, by the end of the century, we would have achieved substantially more than we actually did.

The one thing I regret was that my work required an enormous amount of my time, and a lot of travel.

In flying, the probability of survival is inversely proportional to the angle of arrival.

It doesn't sound like there was time for the word to be there. On the other hand, I didn't intentionally make an inane statement... certainly the 'a' was intended, because that's the only way the statement makes any sense.

The single thing which makes any man happiest is the realization that he has worked up to the limits of his ability, his capacity. It's all the better, of course, if this work has made a contribution to knowledge, or toward moving the human race a little farther forward.