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。
I’m a very positive thinker, and I think that is what helps me the most in difficult moments.
An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment.