No One Has Characterized Market Mechanisms Better

Learning Results From What The Student Does And Thinks, And Only From What The Student Does And Thinks. The Teacher Can Advance Learning Only By Influencing The Student To Learn.

Because He Treats The World As Rather Empty And Ignores The Interrelatedness Of All Things (so Stupefying To Thought And Action), Administrative Man Can Make Decisions With Relatively Simple Rules Of Thumb That Do Not Make Impossible Demands Upon His Capacity For Thought.

Many Individuals And Organization Units Contribute To Every Large Decision, And The Very Problem Of Centralization And Decentralization Is A Problem Of Arranging The Complex System Into An Effective Scheme.

Human Beings Know A Lot Of Things, Some Of Which Are True, And Apply Them. When We Like The Results, We Call It Wisdom.

The Aim ... Is To Provide A Clear And Rigorous Basis For Determining When A Causal Ordering Can Be Said To Hold Between Two Variables Or Groups Of Variables In A Model . . . . The Concepts Refer To A Model-a System Of Equations-and Not To The 'real' World The Model Purports To Describe.