(adjective) Of or relating to the mind or an intellectual process.
"I definitely have some kind of mental problem and I haven't pinpointed what it is."
"Character is the direct result of mental attitude."
"I resent having to prove that I'm not a retard."
"Mental toughness is essential to success."
"I think that I'm so psychotic and so mentally ill that if I could tap into that I could do something really interesting."
"Mental toughness is a state of mind - you could call it character in action."
"Sometimes you need to get away to get a literal breath of fresh air physically & mentally."
"Expectations are the mental prison. Free your mind with no expectations."