Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: University tuition fees are an "unsustainable Ponzi scheme" and should be radically reformed, Theresa May's former chief of staff has said.

Former May adviser Nick Timothy calls student fees 'a Ponzi scheme'