Ecclesiastes 1:8

1:8 All this monotony is tiresome; no one can bear to describe it:

The eye is never satisfied with seeing, nor is the ear ever content with hearing.

Ecclesiastes 6:9

6:9 It is better to be content with what the eyes can see

than for one’s heart always to crave more.

This continual longing is futile – like chasing the wind.