translation.en: We don't really think of the evolutionary need to be protected by our senses, but that's probably why our senses really evolved -- to keep us safe, to allow us to live.
translation.zh: 我们并不会想到，因为进化需求， 我们需要得到感官的保护。 但那也许才是我们的感官进化的真正原因—— 保护我们的安全，让我们得以存活。