“The most important lesson I have ever learned is that I haven't learned anything.”

“It requires an act of extreme arrogance to think that we can - through God or science - learn even the most fundamental secrets of the universe. To say as much claims that we are somehow greater than the universe in which we live, its masters, when in fact it is master of us.”

“I find it significant that most of the people who believe in just war have never fought in one; examples: Barack W. Bush and George H. Obama.”

“I find it significant that most military veterans become pacifists.”

“Freedom, democracy, and socialism can only ever exist together; it is impossible to have any one without the other two.”

“I question the moral integrity of anyone who says they have no regrets.”

“Having been to war myself, I do not understand why so many people are so in love with it.”