from the words of Pink Floyd

So, so you think you can tell

Heaven from Hell,

Blue skies from pain.

Can you tell a green field

From a cold steel rail?

A smile from a veil?

Do you think you can tell?

And did they get you to trade

Your heroes for ghosts?

Hot ashes for trees?

Hot air for a cool breeze?

Cold comfort for change?

And did you exchange

A walk on part in the war

For a lead role in a cage?

How I wish, how I wish you were here.

We're just two lost souls

Swimming in a fish bowl,

Year after year,

Running over the same old ground.

What have we found?

The same old fears.

Wish you were here. 

Wish you were here - Pink Floyd, 1975