Answer
The appearance of circularity is only temporary. The paraphrase provides the resolution. What you have provided is called an elliptical construction. From your post and the resultant comments it seems according to Edwin Ashworth's comment* resolves to:
'There is more to life than life'.
simply resolves to:
'There is more to (living) life than (how you currently live) life.
* Take the apparent contradiction 'There's more to life than life.' It can make sense if we're using different senses of 'life' here, polysemy-with-hypernymy. A paraphrase is 'There's [potentially, at least] an awful lot more we can experience / be aware of / pursue ... in our lives than the daily routine we often robotically accept as all there is'. The original is more punchy, but could be argued to violate the Gricean maxim of clarity.
This is very typical of the Continental tradition, to arouse certain passions by challenging the intuition and to create apparent contradictions, then resolve them. It might be seen as an exercise in dialetheism. You'll find certain philosophers have different styles that sometimes frustrate philosophers of the analytic tradition who aspire to ordinary language philosophy.
- The use of historical context to validate claims about 'objective truths'. This is a habit of historicism.
- Repurposing languages to deliberately provoke the reader to think about the definition of the words being used, followed by defining new terms to differentiate the venacular from the jargon generally where the jargon creates a novel polysemy that is often more or less intuitional depending on a personal preference. A classic example of this is Heidegger's use of Being or Dasein which is a definition of 'being' that is neither quite 'being' nor quite 'existence', but arguably somewhere in between both conventional definitions.
On a ontological note, it's often used to add a dimension such as temporality to an atemporal definition. For instance:
Argle: There's more to a child than a child.
Bargle: Isn't that a violation of the law of identity?
Argle: Not at all! Doesn't a child become an adult, and therefore every child is an adult-to-be?
Bargle: Certainly, if you're willing to dig up Heraclitus and his process philosophy to confuse me. Now why would you do that? Let's keep to the instaneous Platonic form, shall we?
Argle: Oh dear Bargle, Forms don't exist according to good science, and you know it.