5.6 The limits of my language mean the limits of my world.
5.61 Logic fills the world: the limits of the world are also its limits …. What we cannot think, we cannot think; we cannot therefore say what we cannot think.
6.41 The sense of the world must lie outside the world. In the world everything is as it is and happens as it happens. In it there is no value – and if there were, it would be of no value. If there is a value which is of value, it must lie outside all happenings and being-so. For all happening and being-so is accidental.
– Wittgenstein, from the Tractatus Logico-Philosophus