“In Canada pianos needed water. You opened up the back and left a full glass of water, and a month later the glass would be empty. Her father had told her about the dwarfs who drank only at pianos, never in bars.”

“Four questions about the glass and the water. Is it 1/2 full, 1/2 empty, the glass is twice as big as it needs to be and what did you do with the water.”

“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.”

“Some people see the glass as half-empty, while others see it as half-full. But Jones stares at it and tries to figure out who drank the damn water.”

“Half full, half empty - it doesn't matter. It's the same glass of water.”

“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. ”