The current valuation is completely irrational, but as Keynes so correctly noted, the market can stay irrational longer than you can remain solvent.

微软当前的估值完全是非理性的，但正如凯恩斯(Keynes)所言，在市场回归理性之前，你很可能已经破产了。

youdao

But we should guard against substituting irrational pessimism for irrational exuberance.

我们要避免用不理性的悲观来代替不理性的乐观。

youdao

Much positive rhetoric contains irrational expression, but any rhetorical description of positive and expressive effect cannot be completely irrational.

许多积极修辞都包含非理性的描述，但任何具有积极表达效果的修辞描述，都不可能是完全非理性的。

youdao

Larijani also rejected the latest Western proposal to resolve questions about Iran's nuclear program, dismissing it as "unimportant" and "irrational."

VOA: standard.2009.11.15

If that's right, then it seems as though there'd be something irrational and inappropriate about simply disregarding those facts.

如果那是正确的，好像仅仅无视这些事实,有些不合理和不合适。

耶鲁公开课 - 死亡课程节选

And the bestial is identified in Yeats with the heart and with the irrational and with the uncontrollable.

存于人身的野兽就是心灵,是无理智的，不可控制的。

耶鲁公开课 - 现代诗歌课程节选

Mood swings and irrational behavior used to be called simply that: mood swings and irrational behavior.

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Emotional investors, by contrast, make decisions by impulse and hype fueled by irrational exuberance and irrational pessimism, rather than reason.

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But we should guard against substituting irrational pessimism for irrational exuberance.

ECONOMIST: Lexington