“It's not a case of the glass being half full or half empty; more that we tipped a whole half-pint into an empty pint pot. I had to see how much was there, though, and now I know.”
“The glass is not half empty; it is half full.”
“Half full, half empty - it doesn't matter. It's the same glass of water.”
“Seeing the glass as half empty is more positive than seeing it as half full. Through such a lens the only choice is to pour more. That is righteous pessimism.”
“Of course, to a true geek, the glass is neither half-full nor half-empty. It's twice as big as it currently needs to be, though a reasonable reserve margin is not a bad thing to have ready, just in case.”
“One day, someone showed me a glass of water that was half full. And he said, "Is it half full or half empty?" So I drank the water. No more problem.”