help required

So, I don't know where this scores on the pretentiousness scale, but I've decided I need a nice quote for the beginning of my thesis. I've been rummaging around online, as well as hitting my sister for ideas... any feedback or other suggestions will be gratefully accepted.

"If we knew what it was we were doing, it would not be called research,
would it?"
Albert Einstein

"Insanity: doing the same thing over and over again and expecting different results."
Also Einstein

"They say that we are better educated than out parents' generation. What
they mean is that we go to school longer. It is not the same thing."
Richard Yates

"It was the Law of the Sea, they said. Civilisation ends at the waterline.
Beyond that, we all enter the food chain, and not always right at the top"
Hunter S Thompson

"If you really want something in this life you have to work for it.
Now quiet, they're about to announce the lottery numbers "
Homer Simpson

"Sometimes a scream is better than a thesis"
Ralph Waldo Emerson

"Resume

Razors pain you;
Rivers are damp;
Acids stain you;
And drugs cause cramp.
Guns aren't lawful;
Nooses give;
Gas smells awful;
You might as well live."
Dorothy Parker