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Home » TRANSCRIPT: John Lennox on What is Truth? – Practical Wisdom Podcast

TRANSCRIPT: John Lennox on What is Truth? – Practical Wisdom Podcast

This is the transcript of Practical Wisdom Podcast titled ‘What is Truth?’ withJohn Lennox. In this thought-provoking discussion, John Lennox shares his profound insights about truth, science and faith, blending his profound knowledge of mathematics and science with his unwavering faith in God.

Listen to the audio version here:

TRANSCRIPT:

Samuel Marusca: Hello, everyone, and welcome to this new episode of Practical Wisdom with me, Samuel Marusca. Today, we’re going to be talking about truth, about science, and faith.

And I’m delighted to be joined in this conversation by Professor John Lennox. John, it’s a pleasure to be here with you.

John Lennox: Hello. It’s a delight to be with you as well.

Samuel Marusca: John Lennox is Professor of Mathematics at the University of Oxford, and he’s a renowned author and international speaker. He’s debated Richard Dawkins and Christopher Hitchens and many others. He’s a very loved author. He’s published God’s Undertaker, Has Science Buried God?, a more recent book is Can Science Explain Everything? He’s also written Cosmic Chemistry, 2084, and many other books.

The Idea of Truth

John, I’d like to start talking about truth, this idea of truth. Now, it’s a very difficult concept to define, and we have this theory in our contemporary culture that there’s only one way to truth, which is science. When you say God exists, there’s no way you can verify that. So logical positivists say metaphysical propositions are nonsensical because you can’t establish whether it’s false or true.

And then Karl Popper, who wasn’t a positivist himself, came with this falsifiable theory, which goes along the way that you need to prove, be able to prove that something can be falsified in order to show that it’s correct. So, for example, if I say all swans are white, then you only need one example of a black swan to disprove my theory. So my question to you, John, is what is truth?

John Lennox: Well, you’ve made quite a number of assertions just now, and we need to tease them out just a little bit. What is, I think, mostly worth discussing is the dominant notion that science is the only way to truth, and we call that scientism. And it’s a strange thing. I love logic, as obviously you do, and that, to my mind, is logically self-contradictory straight away because the very statement: science is the only way to truth, is not a statement of science. So if it’s true, it’s false. So it’s logically incoherent.

And therefore, you’re right in saying truth is hard to define, but so are all the interesting concepts in life. The really big things are hard to define. And my instinctive response to the question is, of course, to talk about the usual criteria for truth, the two main lines of thinking there. And first of all, the idea that if a story is going to be true, it must be coherent within itself. And secondly, it must, at some level, cog into reality.

Now, in your introduction, you made a statement that the idea that God exists is not verifiable. I would contradict that straight away. I think it is verifiable in the sense that you can adduce evidence for it. In other words, you can begin to put up a case that it corresponds to our experience of reality. And I would want to defend that, of course.

I think there’s another dimension to truth because from where I sit as a Christian, ultimately truth is a person. And since my teenage, I’ve been absolutely fascinated by one of the central claims that Jesus made, ‘I AM THE TRUTH.’ And I noticed very early on that his claim was not, I say the truth. Of course, that is true, but I am the truth.

Now, if we step aside from that and we ask, what is the truth about this piece of matter? Well, we start examining it and we can give a list of the various materials of which it’s made. Then we can go down, what’s the truth about those materials? Well, they consist of molecules. Well, what’s the truth about the molecules? Well, they consist of atoms. Well, what’s the truth about the atoms? Well, they consist of elementary particles. What’s the truth about those?

And the question is, does the series of questions go back forever? I don’t believe it does. I think at the end of every question series like this, the huge claim at the heart of Christianity is you find Christ standing and saying, I am the truth. Because ultimately, he is the cause for which all of this exists at all its different levels. So truth is a person.

And I constantly emphasize to people that God is not a set of propositions. There are plenty of propositions about God, but God is personal. And so when you ask the question, what is truth? Then how do I get to know the truth about a person? Now, if I want to get to know you, Samuel, I could lay you on a sophisticated table and scan your brain and I could measure some of the electrical impulses, but I never get to know you. The only way I would get to know you is if you reveal yourself to me.

Now, once you begin to reveal yourself to me, which would normally be in the first instance by your talk and your gestures and your demeanor, I can then apply criteria to that. Does it make sense? If you say, well, I actually come from the moon, I would want to put that up against some kind of measurement. I think this is hugely important because getting to know a person means you have to reveal yourself.

And the basic question, the basic God question to my mind is, if there is a God, has he revealed himself?

Now, the other big claim of the Christian faith is God has disclosed himself in two major ways. One by speaking through his word, which we have written in the Bible and at the deepest level in Christ himself.