A book must be the axe for the frozen sea within us.

晏子春秋

The more we learn of the true nature of non-human animals, especially those with complex brains and corresponding complex social behaviour, the more ethical concerns are raised regarding their use in the service of man—whether this be in entertainment, as ‘pets,’ for food, in research laboratories or any of the other uses to which we subject them.

永远不要停止学习，因为世界从未停止变化。