能有一种不是某种原因的结果的心智状态吗？
Can there be a state of mind that is not the result of some cause?
对于每一个这样的心智状态，都有一个主观视角伴随着它。
For each such mental state, there is a subjective perspective that goes along with it.
作为一种活动，作为一种心智状态，科学从根本上说是乐观的。
As an activity, as a state of mind, science is fundamentally optimistic.
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