ABCD
Certainty

[[A door seen from a hallway, with "Teachers' Lounge" on the glass. Inside, two teachers are talking.]]
Teacher 1: My students drew me into another political argument.
Teacher 2: Eh; it happens.
Teacher 1: Lately, political debates bother me. They just show how good smart people are at rationalizing.
[[The two teachers continue talking. A third one is seen reading a book on a sofa.]]
Teacher 1: The world is so complicated - the more I learn, the less clear anything gets. There are too many ideas and arguments to pick and choose from. How can I trust myself to know the truth about anything?
And if everything I know is so shaky, what on Earth am I doing teaching?
Teacher 2: I guess you just do your best. No one can impart perfect universal truths to their students.
Teacher 3: <<ahem>>
Teacher 2: ...Except math teachers.
Teacher 3: Thank you.
{{alt text: a(b+c)=(ab)+(ac). Politicize that, bitches.}}
a(b+c)=(ab)+(ac). Politicize that, bitches.