Here’s a link from the lecture notes he posted on Linear Transformations.

His class is pretty awesome. It’s basically like a guy in a pony-tail making jokes the whole class, but I’ve really learned a lot too.

In explaining how Logical OR works:
(A statement “A OR B” is true if A, B, or both A or B are true.)
“A classic example of this in literature would be: ‘Tell me the location of the Rebel base or I will blow up Alderaan.’” (She tells him where the rebel base is; he still blows up Alderaan.)
“This is why you should never trust logicians with planet destroying battle stations.”