'Why? ' is what we want to know,
'do all the stars in heaven glow? '
'Who? ' & 'where? ' & 'what? ' & 'when? '
we ask ourselves - but we are men
not gods whose knowledge can embrace
these massive bodies hung in space.

While mighty stars are born and die
we simple humans whisper: 'Why? '

Brian Purdy

http://www.poemhunter.com/poem/why-is-what-we-want-to-know/