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

فلَو أنَّ الباطلَ خَلَصَ مِن مِزاجِ الحقِّ لَم يَخْفَ علَى المُرتادِينَ، ولَو أنَّ الحقَّ خَلَصَ مِن لَبْسِ الباطلِ انْقَطَعتْ عنه ألْسُنُ المُعانِدينَ، ولكنْ يُؤخَذُ مِن هذا ضِغْثٌ ومِن هذا ضِغْثٌ.

'If falsehood was isolated from being mixed with the truth, it would not be indefinable by those who aspire it; and if the truth was free from being disguised as falsehood, the tongues of its opponents would still be silenced; but it is often made by taking a little from one and a little from the other.'

Source: Nahj al-Balagha, Sermon 50