Monday quote

What modern people want to be made to understand is simply that all argument begins with an assumption; that is, with something that you do not doubt. You can, of course, if you like, doubt the assumption at the beginning of your argument, but in that case you are beginning a different argument with another assumption at the beginning of it. Every argument begins with an infallible dogma, and that infallible dogma can only be disputed by falling back on some other infallible dogma; you can never prove your first statement or it would not be your first.

GK Chesterton