I think my friend is messing with me. He says it is common knowledge that diamonds do not cut wood. I know that if I had the money and I made an ax with a diamond head and made it razor sharp and made an ax from carbon steel with an equally sharp blade, the diamond one would cut better and never get dull. I would die 1000 times before having to resharpen it. I've never been more certain of anything that I can't readily prove. But I can't do anything to convince him of this. Help me exorcise this demon from his soul.