This quote is taken from Ecclesiastes 1:8. The translation is from The Five Megilloth and Jonah: A New Translation by H. L. Ginsberg.  I have used the quote out of context and more importantly not at all with the intent it originally had in its original context. I am spinning the line here to mean that the eye (and one's mind) never ceases (for good / positive reasons) to be interested in seeing what the world has to offer it. That is, the eye is always curious.