If you expect something to turn out badly, it probably will, pessimism is seldom disappointed! But the same principe also works in reverse when you choose optimism.

如果你预料某事会很糟，那么它很可能会真的变成这样。悲观的想法很少会让你失望。但反过来乐观一点的话，你会发现这个原理也同样成立。

Optimism and pessimism are both powerful forces, and each of us must choose which we want to shape our outlook and our expectations.

乐观和悲观都是强大的力量，我们每个人都必须选择两者之一，来塑造我们的前景和预期。

Optimism and pessimism are both powerful forces and each of us must choose which we want to shape our outlook and our expectations.

乐观和悲观都是很强大的力量，我们每个人都必须选择用什么来塑造我们的世界观和规划我们的前程。

We can choose not to care or to despair-or we can try to remember that both pessimism and optimism can often be self-fulfilling prophecy.

我们可以选择不去关心或是悲观绝望，或者我们可以牢记这一点：悲观主义和乐观主义常常是自我应验的。