@de Silentio,
"Whereof one cannot speak, thereof one should be silent"
I understand this to mean ..if there is a context in which we cannot make sense, then we should not talk about it at all.
For example, If we do not admit 'spiritual' entities then to discuss the existence of God or some other spiritual entity, is to talk nonsense...therefore we must remain silent.
TLP "7. What we cannot speak about we must passover in silence."