Full Idea
What distinguishes the higher human being from the lower is that the former see and hear immeasurably more, and see and hear thoughtfully - and precisely this distinguishes human beings from animals, and the higher animals from the lower.
Gist of Idea
Higher human beings see and hear far more than others, and do it more thoughtfully
Source
Friedrich Nietzsche (The Gay (Joyful) Science [1882], §301)
Book Reference
Nietzsche,Friedrich: 'The Gay Science', ed/tr. Kaufmann,Walter [Vintage 1974], p.241
A Reaction
Since most people are well equipped with eyes and ears, I take it that this phenomenon, if true, arises from the 'higher' type of person having more interest in what they experience.