We cannot observe the objective world in our subjective states of consciousness.

我们无法在我们的主观的意识状态中观察客观的世界。

youdao

Dust is nowhere near as hot as a star, therefore optical telescopes cannot observe it.

尘埃温度远不及恒星，所以光学望远镜难以观测到。

youdao

Further, 2 cannot observe the exact height of any of the people at the airport, only relative heights.

此外，2不能观察到在机场的人任何确切的高度，只有相对的高度。

youdao

And this is important because it means that since we cannot observe, we cannot talk about individual electrons.

这很重要,因为这意味着我们不能观察，不能谈及单个电子。

麻省理工公开课 - 固态化学导论课程节选