意识的难题在于解释大脑中的物理过程如何以及为何产生主观体验。
The hard problem of consciousness is the problem of explaining how and why physical processes in the brain give rise to subjective experience.
如果我们不相信我们所鄙视的人的言论自由，那么我们根本就不相信言论自由。
The best ideas often come from the most unexpected places.
The ocean’s limits are not negotiable; our practices must adapt.