He doesn't look himself today.

他今天神色不对。

《新英汉大辞典》

We could say,look,when Socrates dies, he's dying alone in the sense that he's doing it by himself.

我们能说，当苏格拉底死的时候，他孤独而死的意思是，死亡是他单独完成的。

耶鲁公开课 - 死亡课程节选

Look at line 113. This is where Peter is addressing Edward King himself: How well could I have spared for thee, young swain, Enough of such as for their bellies' sake, Creep and intrude and climb into the fold?

看第113行，这是彼得自己提到爱德华金的地方：,年轻人，我该如何宽恕你，我对你的宽恕如此之多，你却硬要堕入信徒的深渊？

耶鲁公开课 - 弥尔顿课程节选

When he returned to start the second half, he didn't look like himself.

WSJ: Nets rally late, beat Pacers 89-84 in OT

And what he really fears to do is take a look at himself.

NEWYORKER: Better Times

An emotionally intelligent leader habitually takes a hard, honest look at himself and accurately discerns his strengths, weaknesses and blind spots.

CNN: Why we pick bad leaders, and how to spot the good ones