is a concept from Ludwig Wittgenstein’s Tractatus Logico-Philosophicus (1921).
It refers to the idea that some propositions in philosophy are tools to help us understand truths about the world, but once their purpose is served, they should be discarded.
Wittgenstein writes:
“My propositions serve as steps to reach a higher understanding; once one has climbed up them, one must throw away the ladder.”
The ladder metaphor highlights his belief that language can only approximate reality, and philosophical statements may be meaningful only temporarily to guide thought, not as ultimate truths themselves.
Once you achieve a certain level of understanding, you will realize those statements were a means to an end—and now that you’ve reached that end, you no longer need them.
Therefore, those statements should be discarded, like a ladder you’ve climbed and no longer need.
Essentially, Wittgenstein’s Ladder reminds us that some teachings or theories are instruments for insight, not final doctrines.