The first time I went to live in Germany, I was renting a flat in the historical centre of Nuremberg. The owner was a teacher who was going to live in Africa for a while, to work on an education project there, and she left behind a great little library, mostly in German. I was trying to learn the language at the time, so I spent whatever moments of sobriety I had leafing through some of the more accessible books. Inside the cover of one, I read a quote, which thanks to my confusion between the German words Zweifeln and Zwiebeln, I took to read:
The greatest pity is this: That the stupid are so certain, and the wise are so full of onions.*
This is a philosophy that has informed my actions ever since (notwithstanding the subsequent discovery that the last work should in fact have been doubts.)
(*) The mangled quote above belongs to Bertrand Russell and I value it to the same extent that I do Billy Connelly's:
Never trust anyone who, when left alone in a room with a tea-cosy, doesn't try it on.