To underestimate oneself is as much an exaggeration of one's powers than the other.
Arthur Conan DoyleI say, Watson,โ he whispered, โwould you be afraid to sleep in the same room as a lunatic, a man with softening of the brain, an idiot whose mind has lost its grip?โ โNot in the least,โ I answered in astonishment. โAh, thatโs lucky,โ he said, and not another word would he utter that night.
Arthur Conan Doyle