I thought steemit is about posting your own content!? This is the transcript of a TED talk! (see: https://www.ted.com/talks/lisa_feldman_barrett_you_aren_t_at_the_mercy_of_your_emotions_your_brain_creates_them/transcript )
The TED license terms do not allow this at all: "Attribute TED as the owner of the TED Talk and include a link to the talk [...] Do not use the TED site content for any commercial purposes, for sale, sublicense or in an app of any kind for any advertising, or in exchange for payment of any kind." (see: https://www.ted.com/about/our-organization/our-policies-terms/ted-com-terms-of-use)