The human brain consists of many specialized circuits that evolved to solve specific problems our ancestors faced during our evolutionary history.
人类大脑由许多专门化的神经回路组成，这些回路进化出来是为了解决我们祖先在进化历史中面临的特定问题。
A moral being is one who is capable of reflecting on his past actions and their motives.
无家可归并不是没有家，而是让你的家永远处于疑问之中。
他的背跟政客一样弯曲。