A Fall of Moondust

by Arthur C. Clarke

The mind has many watchdogs; sometimes they bark unnecessarily, but a wise man never ignores their warning.

Humanity had swallowed them up once more, as the ocean swallows a rain-drop.

“What’s that in feet?” said the Canadian, in a tone of voice that made it clear that he was one of the hardcore anti-metric school.

That didn't age well.