What is Linkin Park's Wisdom Justice and Love about?

I believe Chester wrote a special song About Martin Luther King Jr Cause martin was doing a Last speech in 1967 and Linkin park recorded it by playing piano and violins in the back round so I think Chester found Martin Luther kings speech on Video somewhere on the Internet

Cause he Must be a huge Fan of him I think that's why cause it's Kinda Crazy how they wrote a song like that