"Those who give up their freedom for security will have neither."
...but I'm not absolutely sure I have the wording right and am only about 90% sure it's Franklin.
There is also Niven's Fourth Law, put forth by science fiction grand master Larry Niven. Niven is a freedom-loving man (he put together an advisory group on SDI before they called it SDI or Star Wars) but his view is like "Franklin With A Twist"
"Niven's Fourth Law: F X S = k The Product of Freedom and Security is a constant. To gain more freedom of thought and/or action, you must give up some security, and vice versa."
Can you tell Larry's degree is in Math?