optimist - pessimist - materialist
optimist
/ˈɒptɪmɪst/ noun /
a person who tends to be hopeful and confident about the future or the success of something.
"only an eternal optimist could expect success"
pessimist
/ˈpɛsɪmɪst/ noun /
a person who tends to see the worst aspect of things or believe that the worst will happen.
"the pessimists point to ways in which life has deteriorated"
materialist
məˈtɪərɪəlɪst/ noun /
a person who considers material possessions and physical comfort as more important than spiritual values.
"greedy materialists lusting for consumer baubles"
