The answer is being heuristic. Being able to cook without the use of strict measurements, but relying on one's past experiences and cooking wisdom in order to determine the correct proportions of ingredients is an example of being heuristic. Heuristic refers to being able to teach one's self base on someone's individual discovery or learning.
Social contract theory
"government serves the will of the people"
Scientists can use the color of minerals to tell them apart.
Idiochromatic minerals <em>(self-colored) </em>due to their composition. The color is constant and predictable.
Allochromatic minerals <em>(other colored) </em>due to trace impurities or defects in their structure. The color is variable and unpredictable.
Pseudochromatic minerals <em>(false colored)</em> due to effects produced by light. The color is variable but a unique property of the mineral.