There is a famous Chinese saying: one is not a true man unless he climbs up the Great Wall.

中国有句名言：不到长城非好汉。

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He who doesn't reach the Great Wall is not a true man.

不到长城非好汉。

《新英汉大辞典》

I'll have you know I'm a true man.

我要让你知道我是个真正的男子汉。

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This is what distinguishes, you might say, the true man, the real man, from the slave.

这区分出，实人、,真人、,有别于奴隶。

耶鲁公开课 - 政治哲学导论课程节选

Then that curious true man's responsibility in Jewish tradition we talked about that both in terms of not wasting resources and in terms of not destroying natural areas that they are kind of independent from being resources.

这种人类的神秘的责任,在我们犹太教传统中被解读为,不要浪费资源,也不要破坏自然环境,自然并不生来就是资源。

普林斯顿公开课 - 人性课程节选

Crevecoeur made the North the site of the true essence of what he saw as this new American man being born in America, not in the South.

克雷夫科尔把北方描述成了,真正美国人的发源地,而不是南方

耶鲁公开课 - 美国内战与重建课程节选

Bobby Hatfield was a true soul man and, along with Bill Medley, were favorites of mine growing up as a kid in the United States Midwest.

BBC: NEWS | Entertainment | Righteous Brother Hatfield dies

The 58-year-old is a true football man, not given to outpourings of emotion, and when he speaks about his wife he does so slowly and with feeling.

BBC: Family affair for Lampards

Since then, Akyroyd has proved himself a true renaissance man with talents not only as an Actor, but as a Producer, Radio Personality, Restaurateur (House of Blues), Wine Maker, and now as distiller of Crystal Head Vodka.

FORBES: Crystal Head to Head