And yet the men of civil eminence, who came immediately behind the military escort, were better worth a thoughtful observer's eye.

But the thoughtful observer would have to consider the 1990s as well.

There was an inward change as noticeable to any thoughtful observer as these outward ones.

Precisely because he is such an astute and thoughtful observer of the scientific scene, I found these sentiments surprising.

That it should one day again be the spiritual center of a reborn and truly democratic Berlin is the dream of many a thoughtful foreign observer.

Still, a thoughtful observer would conclude he was remarkably fit for a man who spent twelve hours a day at a desk.

One would have liked to see even more commentary on this critical topic from so honest and thoughtful an observer.

A thoughtful observer might have noticed that he had again moved to a location with a pool of available physicists.

But there were no observers, thoughtful or otherwise.

Yes, they all had seen that, either at the moment or in the holophoto that a thoughtful observer had recorded.