Secondary attributes are optional. You might run into an Envoy entity that lists only primary attributes, or lists the primary attributes and only a couple of the secondary attributes, or maybe lists them all. If you try to convert a character using conversion notes that call for an unlisted secondary attribute, use the primary attribute score associated with that entity. For example, if an entity has a body of 9 and a constitution of 12, you'd use the 9 for strength and size. We've formatted these in an outline format and will probably continue to do so in our publications, although other publishers may choose a different format, such as a horizontal or vertical grid.
Strength reflects pure physical power, lifting capacity, and so on.
Constitution is physical health, the ability to withstand physical damage, and resistance to exposure, poison and disease. Size is a relative aggregate measure of volume and mass. If an entity has disproportionate volume and mass, this should be noted in the entity's description. Mind is an aggregation of memory, reasoning and perception. Memory is ability to store and recall information accurately.