do you know what my favorite thing is about tautologies

it's that they're tautologies

When you're right, you're right

the first rule of tautology club is the first rule of tautology club

I'm quite good at genetics as a subset of biology
Because I am an expert (which I know is a tautology)

they keep trying to get me to join tautology club. I told them, I'll join when I join!