Fire and Fury

John Climacus in The Ladder of Divine Ascent in step three: On Exile -  we are supposed to be exiled from the world.  He says:

To establish a good firm character within ourselves is something very difficult and troublesome, and one crisis can destroy what we have worked so hard to set right. Bad, worldly, and disorderly company destroys good character (cf. 1 Cor 15:33) When a man has renounced the world and still returns to its affairs or draws near to it. he will either fall into its snares or will defile his heart with thoughts of it. He may perhaps be uncorrupted himself. But if he comes to feel contempt for those who are corrupted, then assuredly he will join them in their corruption.   

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