Historically, there has never been a 'stronger' nor a 'weaker' concept, Li Chang Hu summarised. There was simply a most suitable one. This seemed like a stupid thing to say, as someone who grasped the concept of nature would naturally also grasp everything that someone who grasped the concept of thorns would have understood. Thus, it seemed obvious that nature was greater than thorns. But the problem was although nature was much vaster than thorns and could encompass much more, a human's ability and time was limited.