There are, indeed, things that cannot be put into words. They make themselves manifest. They are what is mystical.

Don't for heaven's sake, be afraid of talking nonsense! But you must pay attention to your nonsense.

The philosophical I is not the human being, not the human body or the human soul with the psychological properties, but the metaphysical subject, the boundary (not a part) of the world.

A logical picture of facts is a thought.

One can mistrust one's own senses, but not one's own belief.

You learned the concept 'pain' when you learned language.

Hell isn't other people. Hell is yourself.