If Christianity is really true, then it involves the whole man, including his intellect and creativeness. Christianity is not just "dogmatically" true or "doctrinally" true. Rather, it is true to what is there, true in the whole area of the whole man in all of life.

There are many in the Church as well as out of it who need to learn that Christianity is neither creed nor a ceremonial, but a life vitaly connected with a loving Christ.

Salvation has something to say not only to the individual man but also to the culture. Christianity is individual in the sense that each man must be born again, one at a time. But it is not individualistic. The distinction is important. As God made man, He also made an Eve so that there could be finite, horizontal relationships between two people. Death in the City (Downers Grove, InterVarsity Press: 1969) 86

He who begins by loving Chrisitanity better than Truth will proceed by loving his own sect or church better than Christianity, and end in loving himself better than all.

Christianity is not just a mental assent that certain doctrines are true -- not even that the right doctrines are true. This is only the beginning. This would be rather like a starving man sitting in front of great heaps of food and saying, "I believe the food exists; I believe it is real," and yet never eating it. It is not enough merely to say, "I am a Christian," and then in practice to live as if present contact with the supernatural were something far off and strange. Many Christians I know seem to act as though they come in contact with the supernatural just twice -- once when they are justified and become a Christian and once when they die. The rest of the time they act as though they were sitting in the materialist's chair. Death in the City (Downers Grove, InterVarsity Press: 1969) 134

Unfaith turns Christianity into only a philosophy. Of course, Christianity is a philosophy -- though not a rationalistic one because we have not worked it out from ourselves. Rather, God has told us the answers. In this sense it is the true philosophy, for it gives the right answers to man's philosophic and intellectual questions. However, while it is the true philosophy, our Father in heaven did not mean it to be only theorectical or abstract. He meant it to tell us about Himself -- how we can get to heaven, but equally, how we can live right now in the universe as it is with both the seen and the unseen portions standing in equal reality. If Christians just use Christianity as a matter of mental assent between conversion and death, if they only use it to answer intellectual questions, it is like using a silver spoon for a screw driver. I can believe that a silver spoon makes a good screw driver at certain times. But it is made for something else. To take the silver spoon that's meant to feed you, moment by moment, and keep it in your tool box to use only as a screw driver is silly. Death in the City (Downers Grove, InterVarsity Press: 1969) 139-40

So, if you are a Christian looking for an easy ministry in a post-Christian culture where Christians are a minority, you are unrealistic in your outlook. It was not to be so in Jeremiah's day, and it cannot be so in ours. Death in the City (Downers Grove, InterVarsity Press: 1969) 37

One must keep on pointing out that Christianity is a statement which, if false, is of no importance, and if true, of infinite importance. The one thing it cannot be is moderately important.

The distinction between Christianity and all other systems of religion consists largely in this, that in these others, men are found seeking after God, while Christianity is God seeking after men.

Christianity can be condensed into four words: Admit, Submit, Commit and Transmit.

Our calling is to enjoy God as well as glorify Him. Real fulfillment relates to the purpose for which we were made, to be in reference to God, to be in personal relationship with Him, to be fulfilled by Him, and thus to have an affirmation of life. Christianity should never give any onlooker the right to conclude that Christianity believes in the negation of life. Christianity is able to make a real affirmation because we affirm that it is possible to be in personal relationship to the personal God who is there and who is the final environment of all He created. All else but God is dependent, but being in the image of God, man can be in personal relationship to that which is ultimate and has always been. We can be fulfilled in the highest level of our personality and in all the parts and portions of life... There is nothing Platonic in Christianity... The whole man is to be fulfilled; there is to be an affirmation of life that is filled with joy. Death in the City (Downers Grove, InterVarsity Press: 1969) 26

My religion is merely Christian...The rule of my faith and doctrine is ye law of God in Nature and Scripture. The Church which I am a member of is the Universality of Christians, in conjunction with all particular Churches of Christians in England or elsewhere in the world, whose Communion according to my capacity I desire...

There was never law or sect, or opinion did so much magnify goodness, as the Christian religion doth.

No Christian can be a pessimist, for Christianity is a system of radical optimism.

If Christianity is untrue, then no honest man will want to believe it, however helpful it might be: if it is true, every honest man will want to believe it, even if it gives him no help at all.

People in general are equally horrified at hearing the Christian religion doubted, and at seeing it practiced.

Christianity is a battle - not a dream.

I believe in Christianity as I believe that the Sun has risen, not only because I see it but because by it I see everything else.

Christianity is not a theory or speculation, but a life; not a philosophy of life, but a living presence.

Give us a genuine Christianity that may provoke persecution but will not provoke contempt.

The mind which asks for a non-miraculous Christianity is a mind in process of relapsing from Christianity into mere "religion."

Christianity is both science and art. Science is to know; art is to do. What we know is incomplete until fulfilled in the act. The most practical of all religions is Christianity, because it demands that the act accompany the thought.

To pretend that Christianity was intended to stereotype existing forms of government and society, and protect them against change, is to reduce it to the level of Islamism and Brahminism. It is precisely because Christianity has not done this that it has been the religion of the progressive portion of mankind.

Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important.