CHAPTER V.

THE NEED OF DIVERSITY.

Variability needful for advance of a species, p. 65. Large states a necessary result of rapid communication, p. 66. Diversity needed therefore within the state, as well as between states, p. 67. No moral obligation to uniformity, p. 67. Separate states needed for a doubled-centred diversity, p. 70. Diversity as yet remaining in marriage-law and custom, p. 71. Society a mixture of many past stages of culture, p. 72. Present education a bar to progress by diversity, p. 73. Need of diversity in education, p. 75.