“All science is either physics or stamp collecting.”

“Atheism is a religion like not collecting stamps is a hobby.”

“Some people collect stamps, while I collect letters. My favorite ones are the rare ones, like Q and X.”

“The public has a distorted view of science because children are taught in school that science is a collection of firmly established truths. In fact, science is not a collection of truths. It is a continuing exploration of mysteries.”

“Normal people have rock collections, shell collections, key ring collections and stamp collections. (The Captain had even known somebody with a letterbox collection.) But a people collection? That had to be the most bizarre one he'd come across. Not to mention the most unethical.”

“Radicalism,like stamp collecting,has its time and place.Perhaps,it is useful in one's youth,but you have to move on.”