Before revision: Half a glass of water, illustration of two different mental attitudes, optimism (half full) and pessimism (half empty) 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.
After revision: David ColeHalf a glass of water, illustration of two different mental attitudes, optimism (half full) and pessimism (half empty) 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.