Actually hope is something we create with an optimistic state of mind.
实际上，希望是人们所产生的乐观心态。
However, hope is something can be created with an optimistic state of mind.
然而，拥有乐观的心境希望是可以创造的东西。
As an activity, as a state of mind, science is fundamentally optimistic.
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。
Optimistic and confident in the face of difficulties, to maintain a good state of mind.
乐观自信，面对困难能保持良好的心态。
Optimistic and confident in the face of difficulties, to maintain a good state of mind.
乐观自信，面对困难能保持良好的心态。
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