Nice song, as for other people's philosophies, honestly I believe many simply borrow what they think sounds right. And the current one is that mental disorders are not a weakness because they are not even real. Sadly.
For me, this song... it's on a more personal level for me, but when I think about how I feel about myself as a borderline and how others relate to me, this song really brings it to me. Especially the last lyrics where the writer is now 'too smart' to try to gain understanding or believe.. perhaps in unconditional love for themselves. The link is mobile, not sure that matters.
Fiona Apple - Never is a Promise