I tell my students that they don't need to be accurate to communicate. They do need to be accurate to be respected.

I really do not know that anything has ever been more exciting than diagramming sentences.

Ill-fitting grammar are like ill-fitting shoes. You can get used to it for a bit, but then one day your toes fall off and you can't walk to the bathroom.

I will not go down to posterity talking bad grammar.

This is the type of arrant pedantry up with which I will not put.

It's hard to take someone seriously when they leave you a note saying, 'Your ugly.' My ugly what? The idiot didn't even know the difference between your and you're.