"Mannerini taught me that being intelligent doesn't mean accumulating knowledge, but rather selecting it once it has been accumulated, trying to separate the useful from the useless. [...] I practically learned this ability to analyse and observe from him. He also influenced me politically, reinforcing ideas I already had. He was certainly one of the most important figures in my life."
January 1, 1970
https://en.wikiquote.org/wiki/Fabrizio_De_Andr%C3%A9