Philosophy of Endeavor

Three philosophical traditions converge on the same structure: endeavor is the attempt raised to sustained commitment.

Chisholm: endeavoring as the form of intentional action

Chisholm’s analysis: endeavoring is the general form of intentional activity as such. Every intentional act is an endeavoring, but not every endeavoring is a doing. The distinction: endeavoring can fail. The agent endeavors to move their arm and the arm doesn’t move (paralysis without the agent’s knowledge). The endeavoring occurred; the action (arm-moving) did not.

Failure-openness is structural. What makes endeavor the more fundamental concept than doing is precisely that endeavor can be fully present when the action is absent. Doing requires the world to cooperate; endeavoring does not.

Hornsby: trying as the inner side of action

Hornsby’s refinement: there are trying-events identical to no bodily events. Trying is the inner side of action; the outer side is what happens in the world. The self-commitment and sustained exertion constitute the inner side. The aim achieved constitutes the outer side. The endeavor can be fully present even when the outer side fails.

This matters for the normative weight on striving: if the inner side (committed trying) is distinct from the outer side (achieving), then accountability can attach to the inner side independently. You can fail to achieve and still have endeavored fully. You can achieve and still have failed to endeavor (if you achieved by accident rather than through committed striving).

O’Shaughnessy: sustained trying across episodes

O’Shaughnessy’s distinction: a single intent gives rise to many tryings. The endeavor is the sustained trying — not one volition but an extended, ongoing intentional activity directed toward the aim. This is the exertion interval: the container across individual acts of trying.

The sustained structure is what converts attempt to endeavor. “She attempted to summit Everest” — one try. “She endeavored to summit Everest” — sustained across multiple seasons, with adjustment, persistence, and commitment. The endeavor contains many attempts; the attempt is an episode within the endeavor.

The convergence

The philosophical tradition converges on: endeavor is not the single episode (attempt), not the guaranteed outcome (procedure), not the mere energy expenditure (effort), but the directed, committed, sustained, failure-open striving. The self-commitment is the engine. The extended duration is the structure. The failure-openness is the condition. The aim is the direction.