Mere Christianity -CS Lewis

I’m afraid the only safe rule is that we give more than we can spare. CS Lewis 

In the same way a Christian is not a man who never goes wrong, but a man is enabled to repent and pick himself up and begin over again after each stumble--because the Christ-life is inside him, repairing him all the time, enabling him to repeat (in some degree) the kind of voluntary death which Christ Himself carried out.

It is better to forget about yourself altogether. 

The moment you have a self at all, there is a possibility of putting yourself first - wanting to be the centre - wanting to be God, in fact. That was the sin of Satan: and that was the sin he taught the human race. Some people think the fall of man had something to do with sex, but that is a mistake...what Satan put into the heads of our remote ancestors was the idea that they 'could be like Gods' - could set up on their own as if they had created themselves - be their own masters - invent some sort of happiness for themselves outside God, apart from God. And out of that hopeless attempt has come...the long terrible story of man trying to find something other than God which will make him happy.

It comes the very moment you wake up each morning. All your wishes and hopes for the day rush at you like wild animals. And the first job each morning consists simply in shoving them all back; in listening to that other voice, taking that other point of view, letting that other larger, stronger, quieter life come flowing in. And so on, all day. Standing back from all your natural fussings and frettings; coming in out of the wind.

The more you obey your conscience, the more your conscience will demand of you.

8. C. Is harder and easier. New self...

The terrible thing, the almost impossible thing, is to hand over your whole self--all your wishes and precautions--to Christ. But it is far easier than what we are all trying to do instead. For what we are trying to do is to remain what we call "ourselves," to keep personal happiness as our great aim in life, and yet at the same time be "good.

Laziness means more work in the long run.