If You Can't Say Anything Nice, Then

I Thought These Grapes Were Ripe, But I See Now They Are Quite Sour.

If We Really Want Something Done, It Is Best To Do It Ourselves.

Conceit May Bring About One's Own Downfall.

Much Outcry, Little Outcome.

A Doubtful Friend Is Worse Than A Certain Enemy. Let A Man Be One Thing Or The Other, And We Then Know How To Meet Him.