'All is Vanity' in the Bible

Vanity of vanities, says the Preacher, vanity of vanities; all is vanity.

I have seen all the works that are done under the sun; and, behold, all is vanity and like grasping the wind.

Therefore I hated life; because the work that is done under the sun is grievous unto me: for all is vanity and like grasping the wind.

For that which befalls the sons of men befalls beasts; the same thing befalls them: as the one dies, so dies the other; yea, they have all one breath; so that a man has no advantage over a beast: for all is vanity.

Vanity of vanities, says the preacher; all is vanity.