It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn’t feel like a giant. I felt very, very small.
Science cuts two ways, of course; its products can be used for both good and evil. But there’s no turning back from science. The early warnings about technological dangers also come from science. Curious that we spend more time congratulating people who have succeeded than encouraging people who have not.
What was most significant about the lunar voyage was not that man set foot on the Moon but that they set eye on the earth.