To offer candid and upright counsel, even when it involves personal sacrifice or difficulty, prioritizing the well-being of an endeavor over personal gain.
那位老教授在学术会议上常常蹇蹇匪躬，指出研究中的不足，促进了学科的健康发展。
At academic conferences, the old professor often offered candid and upright counsel, pointing out shortcomings in research, which promoted the healthy development of the discipline.
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