I think the word "has" is the main verb
Honestly no it doesnt count as literate if it has spelling mistakes, like if you were spelling "then" but it was written as "tehn" it really makes you lose ur focus on the poem writing essay
Answer:
It's to support subject/verb inversion (as in "neither do I" or "so do we"). So 'does' is standing in for the main verb, 'discover' because modern English avoids inverting except with auxiliary verbs such as do, can, will. Without 'does', you'd have to say 'Only by ... views of others DISCOVERS ONE ...' which isn't done in modern English.
Move the passive sentence's subject into the active sentence's direct object slot.