Across the sea of space, the stars are other suns.
The sky is the limit only for those who aren't afraid to fly!
Problems look mighty small from 150 miles up.
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.
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.