Pessoa, *Philosophical Essays*
The half-sceptic speaks like Socrates, I know only that I know nothing. The whole sceptic speaks like Francisco Sanches: Haud scio me nihil scire, I do not even know if I know nothing.
And:
The end of reason is a weariness of thinking. Yet reason is so strong that even its weariness is a part of its strength and we dream rationally if we have learnt reason.
Those bits are from this (uneven) volume.