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

“Most of the propositions and questions to be found in philosophical works are not false but nonsensical.”

“If you and I are to live religious lives, it mustn't be that we talk a lot about religion, but that our manner of life is different. It is my belief that only if you try to be helpful to other people will you in the end find your way to God.”

“You must always be puzzled by mental illness. The thing I would dread most, if I became mentally ill, would be your adopting a common sense attitude; that you could take it for granted that I was deluded”

“Just be indipendent of the external world, so you don't have to fear for what's in it.”

“Concerning that which cannot be talked about, we should not say anything. ”

“[Philosophy] must set limits to what can be thought; and, in doing so, to what cannot be thought. It must set limits to what cannot be thought by working outwards through what can be thought.”