Optimism is an attitude reflecting a belief or hope that the outcome of some specific endeavor, or outcomes in general, will be positive, favorable, and desirable. A common idiom used to illustrate optimism versus pessimism is a glass filled with water to the halfway point: an optimist is said to see the glass as half full, while a pessimist sees the glass as half empty. The term derives from the Latin optimum, meaning "best". Being optimistic, in the typical sense of the word, is defined as expecting the best possible outcome from any given situation. This is usually referred to in psychology as dispositional optimism. It thus reflects a belief that future conditions will work out for the best. For this reason, it is seen as a trait that fosters resilience in the face of stress. Optimalism has also been classified into two: product optimalism and process optimalism. The former is described as an outlook that looks to provide the realization of the best possible result while the latter looks for a maximization of the chances of achieving the best possible result. Others classify it either as full-scale, one that implies determinism, or weak determinism, which claims that we have the best laws and initial conditions.  Some sources also distinguish the concept from optimism since it does not focus on how things are going well but on how things are going as well as possible. Mayo Clinic Staff. "Positive thinking: Stop negative self-talk to reduce stress". Mayoclinic.org. Mayo Clinic, 4 March 2014. Web. 31 March 2014. Chang, E. (2001). Optimism & Pessimism: Implications for Theory, Research, and Practice, Washington, DC: American Psychological Association. . Huesemann, Michael H., and Joyce A. Huesemann (2011). Technofix: Why Technology Won't Save Us or the Environment, Chapter 7, "Technological Optimism and Belief in Progress" , New Society Publishers, Gabriola Island, British Columbia, Canada , , 464 pp. Seligman, M.E.P., (2006). Learned Optimism: How to Change Your Mind and Your Life, Vintage, . Sharot, Tali (2012). The Optimism Bias: A Tour of the Irrationally Positive Brain, Vintage, .
Optimism is an attitude reflecting a belief or hope that the outcome of some specific endeavor, or outcomes in general, will be positive, favorable, and desirable. A common idiom used to illustrate optimism versus pessimism is a glass filled with water to the halfway point: The term derives from the Latin optimum, meaning "best". Being optimistic, in the typical sense of the word, is defined as expecting the best possible outcome from any given situation. This is usually referred to in psychology as dispositional optimism. It thus reflects a belief that future conditions will work out for the best. For this reason, it is seen as a trait that fosters resilience in the face of stress. Optimalism has also been classified into two: product optimalism and process optimalism. The former is described as an outlook that looks to provide the realization of the best possible result while the latter looks for a maximization of the chances of achieving the best possible result. Others classify it either as full-scale, one that implies determinism, or weak determinismRescher|last1=Shook|first1=John R.|last2=Ghiraldelli|first2=Paulo|date=2005|publisher=Rodopi|isbn=90-420-1988-3|location=Amsterdam|pages=44, 46 </ref> Some sources also distinguish the concept from optimism since it does not focus on how things are going well but on how things are going as well as possible. Mayo Clinic Staff. URL Chang, E. (2001). Optimism & Pessimism: Implications for Theory, Research, and Practice, Washington, DC: American Psychological Association. . Huesemann, Michael H., and Joyce A. Huesemann (2011). Technofix: Why Technology Won't Save Us or the Environment, Chapter 7, "Technological Optimism and Belief in Progress" , , 464 pp. Seligman, M.E.P., (2006). Learned Optimism: How to Change Your Mind and Your Life, Vintage, . Sharot, Tali (2012). The Optimism Bias: A Tour of the Irrationally Positive Brain, Vintage, .
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an optimist is said to see the glass as half full, while a pessimist sees the glass as half empty.
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determinism, which claims that we have the best laws and initial conditions.
determinismRescher|last1=Shook|first1=John R.|last2=Ghiraldelli|first2=Paulo|date=2005|publisher=Rodopi|isbn=90-420-1988-3|location=Amsterdam|pages=44, 46
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"Positive thinking: Stop negative self-talk to reduce stress". Mayoclinic.org. Mayo Clinic, 4 March 2014. Web. 31 March 2014.
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, New Society Publishers, Gabriola Island, British Columbia, Canada