Some quotes I enjoy:

"It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring."
- Carl Sagan.

"Remember that a government big enough to give you everything you want is also big enough to take away everything you have."
-Gerald Ford.

"Society bends over backward to be accommodating to religious sensibilities but not to other kinds of sensibilities. If I say something offensive to religious people, I'll be universally censured, including by many atheists. But if I say something insulting about Democrats or Republicans or the Green Party, one is allowed to get away with that. Hiding behind the smoke screen of untouchability is something religions have been allowed to get away with for too long."
-Richard Dawkins