It is absurd to talk of humanity as though it presented a uniform psychological pattern. On the contrary, it presents a particularly uneven one. It is indeed a conglomeration of groups in various degrees of development. Some are intellectually advanced whereas others are intellectually backward. Some are very near to the noble in ideals whereas others are very far from them. All that can be said about their psychological situation is that the forward movement of evolution may be a halting and lagging one but it is a certain one.
-- Notebooks Category 13: Human Experience > Chapter 4: World Crisis > # 87