“You're the type who thinks of the glass as being half full, instead of half empty. "No," she said, "I'm just grateful for the glass.”

“There are, it has been said, two types of people in the world. There are those who, when presented with a glass that is exactly half full, say: this glass is half full. And then there are those who say: this glass is half empty. The world belongs, however, to those who can look at the glass and say: What's up with this glass? Excuse me? Excuse me? This is my glass? I don't think so. My glass was full! And it was a bigger glass! Who's been pinching my beer? And at the other end of the bar the world is full of the other type of person, who has a broken glass, or a glass that has been carelessly knocked over (usually by one of the people calling for a larger glass) or who had no glass at all, because he was at the back of the crowd and had failed to catch the barman's eye. ”

“Is the glass half full, or half empty? It depends on whether you're pouring, or drinking.”

“...she was a level-headed woman who saw the glass as neither half empty nor half full, but rather a glass with something in it and room to pour in more...”

“The glass is not half empty; it is half full.”

“Half full or half empty, just be thankful if your glass has anything in it at all.”