Optimist: Someone who figures that taking a step backward after taking a step forward is not a disaster; it's a cha-cha.

Optimist: Someone who figures that taking a step backward after taking a step forward is not a disaster; it's a cha-cha.

乐观主义者:认为在前进了一步之后后退一步并不是灾难的人;这是一个跳恰恰舞。

-- Robert Brault 罗伯特·布拉特