CHAPTER 5.
Identity of electricities; first researches on electro-chemistry.
I have already once used the word 'discomfort' in reference to the occasional state of Faraday's mind when experimenting.

It was to him a discomfort to reason upon data which admitted of doubt.

He hated what he called 'doubtful knowledge,' and ever tended either to transfer it into the region of undoubtful knowledge, or of certain and definite ignorance.

Pretence of all kinds, whether in life or in philosophy, was hateful to him.

He wished to know the reality of our nescience as well as of our science.