鬼の目にも涙

Excite翻訳: It sheds tears for demon's eyes.
＠nifty翻訳: Crocodile tears
Babel Fish: Even in eye of ogre tear
Google翻訳: Tears in the eyes of a demon
Yahoo!翻訳: Even the devil sometimes sheds tears
OCN翻訳: In demon's eye, tear
Windows Live Translator: Demon Eyes tears

Summary:
@nifty has an existing expression of Western Europe.
The others tries direct translation, and Yahoo!'s may be able to deliver the meaning.

Reverse Translation)
Excite翻訳: それは悪霊の目のために涙を流します。
＠nifty翻訳: そら涙
Babel Fish: 鬼の破損の目で
Google翻訳: は悪魔の目に涙
Yahoo!翻訳: 悪魔さえ、時々涙を流します
OCN翻訳: デーモンの目において裂けてください
Windows Live Translator: 鬼の目の涙

Summary:
Yahoo!'s describes the world in the original Japanese saying though it does not explain the real meaning.