Trickle-down economics, or “trickle-down theory,” states that tax breaks and benefits for corporations and the wealthy will trickle down to everyone else. It argues for income and capital gains tax breaks or other financial benefits to large businesses, investors, and entrepreneurs to stimulate economic growth. The argument hinges on two assumptions: All members of society benefit from growth, and growth is most likely to come from those with the resources and skills to increase productive output.
The answer is observation. Observation is the gaining of information from a chief source. In living beings, observation works through the senses. In science, observation can also consist of the recording of data via the use of instruments. Greek philosophers move toward the big questions of life sometimes in an unpretentious scientific way, sometimes in mystic ways, but always in an imaginative fashion using observation.
They viewed it as a threat to their way of life and to the church