On the two words that keep working
“Whatever inspiration is, it's born from a continuous 'I don't know'.”
Szymborska is defending a small phrase against the people who find it embarrassing. Her argument is that everything anyone has ever gone on to find out began with someone willing to say it.
She is careful about the word continuous. Not an admission made once and then resolved, but a condition maintained on purpose — because knowledge that stops producing new questions, as she puts it elsewhere in the lecture, dies quickly.