This cracked me up when I read it:
Often, the person in the group who articulates the possible is dismissed as a dreamer or as a Pollyanna persisting in a simplistic "glass half-full" kind of optimism. The naysayers pride themselves on their supposed realism. However, it is actually the people who see the glass as "half-empty" who are the ones wedded to a fiction, for "emptiness' and "lack" are abstractions of the mind, whereas "half-full" is a measure of the physical reality under discussion. The so-called optimist, then, is the only one attending to real things, the only one describing a substance that is actually in the glass.
That's from the book The Art of Possibility by Benjamin and Rosamund Zander.
Emily Dickinson said it beautifully a long time ago:
I dwell in
A fairer House than
More numerous of
Today, I feel an urge (need?) to open the windows and throw open the doors of possibility. In other words, the book I'm working on is half-full of words, instead of half empty, yes it is. So there, pessimism, take that! Pow, right on the kisser.
What's in your glass today? :)