Throughout history there runs one main trend: a progressive differentiation, or passage from simple to more complex forms in behavior, thought, and s… - Lancelot Law Whyte

The ideals of truth, beauty, and goodness represent attempts to interpret the process of development as a group of tendencies permanently directed towards certain permanent and universal ends. But human behaviour is not directed towards unchanging ends, not even towards those temporary ideals which each community sets up for itself. The formative tendency is displayed, not in any steady process of definite orientation, but in a rhythmic sequence of transformation which cannot be represented as tending towards any particular final condition. (p. 261-262)

In the religious age, the religious hierarchy wields power; in the political age, the ruler, nobles and commoners; in the economic, the hierarchy of wealth. The development of Europe during the last six centuries has consisted in the progressive shifting of the hierarchy of power from one set of functions to another. (p. 132)

Dogmatism in science is usually mistaken, because the conviction of certainty expresses a psychological compulsion, never any truly compelling reasons or facts. When a view attains wide popularity and seems obviously beyond question, its decline has usually begun or will begin very soon.