The Greatest Adventure from Rankin/Bass' The Hobbit animated movie:

The greatest adventure is what lies ahead
Today and tomorrow are yet to be said
The chances the changes are all yours to make
The mould of your life is in your hands to break.

The greatest adventure is there if you're bold
Let go of the moment that life makes you hold
To measure the meaning can make you delay
It's time you stop thinkin' and wasting the day

The man who's a dreamer and never takes leave
Who thinks of a world that is just make-believe
Will never know passion; will never know pain
Who sits by the window will one day see rain.

The greatest adventure is what lies ahead
Today and tomorrow are yet to be said
The chances the changes are all yours to make
The mould of your life is in your hands to break.

The greatest adventure is what lies ahead.