Common sense is the innate ability to know what is best, or what is right, or how to do a task the best way, or to make the best decision. Common sense grows from experience and attention given to a subject or any living or nonliving thing. Common sense is a built in survival system. Constructive philosophy can result in doing something that will help rather than hurt a person, an animal, or a tree. Common sense and constructive philosophy are entwined.
Conifers have compression wood.
They have tracheids. Hardwick is must reading for anyone really interested in trees. The cortex is a layer inside the thin outer bark on young stems. It mostly contains parenchyma cells that have chlorophyll. Cortex with chlorophyll is an energy trapping tissue.