Quotes like this make my day ;)

So the svd and the principle components, and principle components analysis is essentially the same thing. And so if you hear, you know, you’re in a cocktail party and you hear two people talking about the svd and pca you can rest assured that they’re basically doing the same thing.

source: Exploratory Data Analysis

One is a shift pattern and the second is this kind of alternating pattern, so that’s the truth. But of course, we rarely know the truth, so we need to learn the truth from the data.

source: Exploratory Data Analysis