All the way back into early philosophy and certainly throughout the history of neuroscience, this has been one mystery that has always resisted elucidation, has got major controversies.
从早期的哲学发展到现在， 当然包括整个神经科学的发展历史， 这都是一个难以阐述清楚 的迷， 并且引起了很多的争论。