The more specific idea of Evolution now reached is -- a change from an indefinite, incoherent homogeneity to a definite, coherent heterogeneity, accompanying the dissipation of motion and integration of matter.
— Herbert Spencer

The most heterogeneous ideas are yoked by violence together; nature and art are ransacked for illustrations, comparisons, and allusions; their learning instructs, and their subtlety surprises; but the reader commonly thinks his improvement dearly bought and, though he sometimes admires, is seldom pleased.
Samuel Johnson heterogeneity quote

Civilization is a progress from an indefinite, incoherent homogeneity toward a definite, coherent heterogeneity.
— Herbert Spencer

The more specific idea of Evolution now reached is - a change from an indefinite, incoherent homogeneity to a definite, coherent heterogeneity, accompanying the dissipation of motion and integration of matter.
— Herbert Spencer

The results indicate that heterogeneity of race and heterogeneity of family educational background can increase the achievement of children from weak educational backgrounds with no adverse effect on children from strong educational backgrounds.
— heterogeneity quotation by James S. Coleman