All the rivers run into the sea, yet the sea is never full

“Meaningless! Meaningless!”

   says the Teacher.

“Utterly meaningless!

   Everything is meaningless.”

What do people gain from all their labors

   at which they toil under the sun?

Generations come and generations go,

   but the earth remains forever.

The sun rises and the sun sets,

   and hurries back to where it rises.

The wind blows to the south

   and turns to the north;

round and round it goes,

   ever returning on its course.

Ecclesiastes, 1, 2-6