I know that I know nothing

Socratic paradox

The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

Bertrand Russell

Anyone who thinks that 'their side' knows the one answer to any social or political issue is a fool. List any of the topics of the day and you will see two sides butting heads with absolutely no room for compromise or discussion, even if I find myself siding one way or the other, it is important to always play devil's advocate to your own point to find something that is at least worth discussion.

Right/Left
Liberal/Conservative

All full of shit in thinking that you know the answer to topics which any reasonable person could discuss all day and all night without being able to come to a full conclusion.