悲观主义者的决定性特征是，他们倾向于相信坏事会持续很长时间，会破坏他们所做的一切，并且是他们自己的错。
The defining characteristic of pessimists is that they tend to believe bad events will last a long time, will undermine everything they do, and are their own fault.
过去是一个外国；他们在那里做不同的事情。
Life is too important to be taken seriously.
Happiness depends upon ourselves.
内心慎防杂念，会更加机敏；眼光审慎万物，则愈加明亮。