The pessimist complains about the wind; The optimist expects it to change; The realist adjusts the sails.

The pessimist complains about the wind; The optimist expects it to change; The realist adjusts the sails.

悲观主义者抱怨风;乐观主义者期望它改变;现实主义者调整风帆。

-- William Arthur Ward 威廉.亚瑟.沃德