Pessimism, from the Latin pessimus (worst),'s a state of mind which negatively colors the perception of life, especially with regard to future events. Value judgments may vary dramatically between individuals, even when judgments of fact are undisputed. The most common example of this phenomenon's the "Is the glass half empty or half full?" situation. The degree in which situations like these are evaluated as something good or something bad can be described in terms of one's optimism or pessimi… (More on Pessimism)