"Since propositions merely express facts about the world, propositions in themselves are entirely devoid of value. The facts are just the facts. Everything else, everything about which we care, everything that might render the world meaningful, must reside elsewhere. A properly logical language, deals only with what is true. Aesthetic judgments about what is beautiful and ethical judgments about what is good cannot even be expressed within the logical language, since they transcend what can be pictured in thought.
They aren't facts."
My propositions serve as elucidations in the following way: anyone who understands me eventually recognizes them as nonsensical, when he has used them—as steps—to climb up beyond them. (He must, so to speak, throw away the ladder after he has climbed up it.)
He must transcend these propositions, and then he will see the world aright.
Whereof one cannot speak, thereof one must be silent
—Wittgenstein, Tractatus Logico-Philosophicus