“get the facts or the facts will get you.”
“Get the facts, or the facts will get you. And when you get them, get them right, or they will get you wrong.”
“First get the facts, you can distort them later”
“Always get the facts first. You can distort them later.”
“Get your facts first, and then you can distort them as much as you please.”
“Never face facts; if you do you'll never get up in the morning.”