时间旅行也许是不可感知的。
人类不是机器人，不管我们如何描绘一个完美的体验，他们都不可能完全感知到我们的期望以及希望。
People don't behave like robots, and no matter how well we craft an experience, they will not perceive exactly as we anticipate or hope.
人类起初对上帝并没有直接的感知，不像我们不可回避的时时感受到上帝的存在。
The humans do not start from that direct perception of Him which we, unhappily, cannot avoid.
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