[[File:Glass Half Full bw 1.jpeg|thumbnail|right|250px|The half a glass of water helps illustrates of two different mental [[attitude]]s, [[optimism]] (half full) and [[pessimism]] (half empty)]] | [[File:Glass Half Full bw 1.jpeg|thumbnail|right|250px|The half a glass of water helps illustrates of two different mental [[attitude]]s, [[optimism]] (half full) and [[pessimism]] (half empty)]] |