Hawzah News Agency – The commander of the faithful, Imam Ali peace be upon him says:

المُنافِقُ إذا نَظَرَ لَها، وإذا سَكَتَ سَها، وإذا تَكَلَّمَ لَغا، وإذا استَغنى‏ طَغا، وإذا أصابَتهُ شِدَّةٌ ضَغا، فهُو قَريبُ السُّخطِ بَعيدُ الرِّضا، يُسخِطُهُ علَى اللَّهِ اليَسيرُ، ولا يُرضيهِ الكثيرُ، يَنوي كثيراً مِن الشَّرِّ ويَعمَلُ بطائفَةٍ مِنهُ، ويَتَلَهَّفُ على‏ ما فاتَهُ مِن الشَّرِّ كيفَ لَم يَعمَلْ بهِ!

'A hypocrite, when he looks he is frivolous, when he is silent he forgets, when he speaks he prattles, when he becomes wealthy he tyrannizes, when hardship afflicts him he becomes noisy, so he is close to discontentment and far from contentment. The least of things make him discontented with Allah, and he is never content, even with much. He intends to do a lot of evil and commits some of them, and he regrets the evil deeds that pass him by and how he did not manage to commit them.'

Source: Tuhaf al-Uqul, p. 212