Small Gods - Terry Pratchett
Terry Pratchett
Small Gods
A Novel of Discworld®
Now consider the tortoise and the eagle.
The tortoise is a ground-living creature. It is impossible to live nearer the ground without being under it. Its horizons are a few inches away. It has about as good a turn of speed as you need to hunt down a lettuce. It has survived while the rest of evolution flowed past it by being, on the whole, no threat to anyone and too much trouble to eat.
And then there is the eagle. A creature of the air ...