"Hope for the best, prepare for the worst"
- Imperial Guard Field Manual
"We are judged in life for the evil we destroy"
- Reclusiarch Mordred
"I cant afford Mountain Dew! The economy is rough right now! Obamaaaa!!!"
- Boogie2988 Francis
"Oh shit the bed....."
- Yogscast Tom
"Be polite, be professional, but have a plan to kill everyone you meet"
- Gen James Mattis
And I can't remember any other ones at the moment