Throughout the track, the phrase "what you're" can be heard, slightly pitched up and with a possible slight vocoder effect. Credit to Brady Brignac for this discovery. [1]
Throughout the song is the voice sample saying what appears to be "Watch it", followed by "It's alright".
Backwards: "There are a lot of different 'me's, you know. There's the mad me, when I get angry."
[DC] [Second quote: same Sesame Street vignette as "Whitewater" lyrics] [2]
"I know we can!" plays at 2:17 in Sixtyten as well as in Getaway.
Samples the song "On Your Face" by music group Earth Wind and Fire (forwards at 2:27, reversed at 3:28 and elsewhere in the song). [4]
When the sample is reversed and corrected for pitch "Keep a smiling face" plays at 3:28 in Sixtyten, taken from 1:10 in On Your Face. [5]
The separate vignette at the end of the track is believed to be a composition named "Blueberry".[6]
Trivia
"Sixtyten" is 70 (a literal translation of the french word for seventy 'soixante dix'). You'll hear this in "Aquarius" too. A reference to Music70, BoC's own label. See comments on "The Smallest Weird Number" in Geogaddi.