A few folks have posted a couple of the Frazetta Buck Rogers covers from Famous Funnies, but the whole run he did form 209-216 are incredible. I think 209 and 214 have been posted already, but here are the others...
"We cannot change the world until we change ourselves." -Christopher Wallace
"I see a comics culture that preserves and appreciates its past, but doesn't wallow in witless nostalgia." -Scott McCloud
“Humans beings always do the most intelligent thing…after they’ve tried every stupid alternative and none of them have worked” ― Buckminster Fuller
"Things happen all the time. Stories are how we arrange them to make sense of them." -Warren Ellis