<p>The work of the great philosophers of the past is well known. From Aristotle and Plato to Kant and Wittgenstein, the answers to life's biggest questions have been discussed and debated endlessly. But, as philosophy itself teaches, there is never a final solution to a philosophical problem.<br><br><br>In the search for higher meaning, Nicholas Fearn has travelled the globe to interview the world's most distinguished thinkers, from Der...