"It is not a matter of teaching the student of philosophy new facts, but of teaching him new ways of looking at old facts."

"A philosophical problem has the form: 'I don't know my way about.'"

"The problems arising through a misinterpretation of our forms of language have the character of depth. They are deep disquietudes; their roots are as deep in us as the forms of our language and their …"

"My work consists of two parts: the one presented here plus all that I have not written. And it is precisely this second part that is the important one."

"What is good is also divine. Peculiar as it may sound, that sums up my ethics."