Skopos

The Stoics distinguished between the skopos (intentions) and telos (results) of an action.

Stated another way: The Stoic thesis is that while a skopos (expressed by a noun, "happiness") is a body, a telos (expressed by a verb, "being happy") is an incorporeal. The expressions "living" (zên) and "being happy" (eudaimonein) used in Stoic definitions of telos were regarded as "predicates". In other words, the end (telos) in the strict sense turns out to be a predicate, something incorporeal, not the thing itself, but the agent's attaining the thing. Thus "being happy" (eudaimonein) is the telos, not happiness.

More recently, it seems this distinction has been conflated.