Ordinary language is all right.
One could divide humanity into two classes:
those who master a metaphor, and those who hold by a formula.
Those with a bent for both are too few, they do not comprise a class.
'Doubt of any sort cannot be removed except action.'
Depression blurs the line between trying and not trying.
'Understanding is the maximum with regard to a doctrine, and becoming an adherent is a cunning way by which people who do not understand something slyly pretend that they have understood. With regard to an existence-communication, existing in it is the maximum and wanting to understand it is a cunning evasion that wants to shirk the task. To become a Hegelian is open to suspicion, to understand Hegel is the maximum; to become a Christian is the maximum, to want to understand Christianity is open to suspicion.'
'In a time when it is so common to do evil, it is practically praiseworthy to do what is merely useless.'
'So also with knowing, when it becomes fantastic. The law for the development of the self with respect to knowing, insofar as it is the case that the self becomes itself, is that the increase of knowledge corresponds to the increase of self-knowledge, that the more the self knows, the more it knows itself. If this does not happen, the more knowledge increases, the more it becomes a kind of inhuman knowledge, in the obtaining of which a person's self is squandered, much the way men were squandered on building pyramids, or the way men in Russian brass bands are squandered on playing just one note, no more, no less.'
'Because philosophy is good for nothing, it is not yet outmoded.'