For no human being lives outside the reality common to us all. Whatever people may say the world is or who they are, it is what it is and they are who they are. Again, no argument is unarguable, but there are thoughts that can be thought but not lived. When all is said and done, reality always has the last word. The truth will always out. Standing up to falsehood, lies and crazy ideas is never an easy task, but it is far easier than the hardest task of all, becoming people of truth ourselves.
Os Guinness, Time for Truth (2000)