马克思曾经指出，一般的工程技术人员也参与创造剩余价值。
Marx pointed out that ordinary engineers and technicians join in the creation of surplus value.
马克思曾经指出，历史会重演，第一次是悲剧，第二次则是闹剧。
Marx noted that history repeats itself, first as tragedy, then as farce.
马克思、恩格斯曾经指出：“作为确定的人、现实的人，你就有规定，就有使命，就有任务。”
Marx and Engels pointed out: "as the person identified in the reality of people, you have provided for, there is the mission of the task alone."
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