「欠缺知識的清晰思考，無法確保制定明智的決策；欠缺清晰思考的廣泛知識，也不足以制定更明智的決策。……明智決策是清晰思考與相關知識結合，所誕生的健康寶寶。」“Clear thinking without knowledge will not guarantee a sound decision and extensive knowledge without clear thinking is no better…A sound decision is the healthy child of a marriage between clear thinking and relevant knowledge.”

「欠缺知識的清晰思考，無法確保制定明智的決策；欠缺清晰思考的廣泛知識，也不足以制定更明智的決策。……明智決策是清晰思考與相關知識結合，所誕生的健康寶寶。」A.R.C.鄧肯
“Clear thinking without knowledge will not guarantee a sound decision and extensive knowledge without clear thinking is no better…A sound decision is the healthy child of a marriage between clear thinking and relevant knowledge.” A.R.C Duncan