You are not a being like The Son of God, whose will and interests are at one with those of the Father: you are a bundle of self-centred fears, hopes, greeds, jealousies, and self-conceit, all doomed to death.
 C. S. Lewis, Mere Christianity (1952). copy citation

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Author C. S. Lewis
Source Mere Christianity
Topic jealousy death
Date 1952
Language English
Reference
Note Adapted from a series of BBC radio talks made between 1942 and 1944
Weblink https://www.dacc.edu/assets/pdfs/PCM/merechristianitylewis.pdf

Context

“They mean quite frankly, that you are putting yourself in the place of a son of God. To put it bluntly, you are dressing up as Christ. If you like, you are pretending. Because, of course, the moment you realise what the words mean, you realise that you are not a son of God. You are not a being like The Son of God, whose will and interests are at one with those of the Father: you are a bundle of self-centred fears, hopes, greeds, jealousies, and self-conceit, all doomed to death. So that, in a way, this dressing up as Christ is a piece of outrageous cheek. But the odd thing is that He has ordered us to do it.
Why? What is the good of pretending to be what you are not? Well, even on the human level, you know, there are two kinds of pretending.” source