Your P-functioning is actualized now, because you're engaged in thought, but you don't lose the ability to think during those moments when you're not thinking.

你的能力正在被实践，是因为你正在思考，但你没有在思考的时候也没有,失去思考的能力。

耶鲁公开课 - 死亡课程节选

They'll think you couldn't fulfill your promise.

人家会觉得你没有能力实践承诺。

耶鲁公开课 - 旧约导论课程节选

Abilities aren't always actualized.

能力不总是需要被实践的。

耶鲁公开课 - 死亡课程节选