A forward by Neil 'The Grass' Tieson:

You can kiss you in the mirror, but only on the lips.

A forward by Diogenes of Constantinople:

$\lbrace\text{featherless chicken}\rbrace \cup \lbrace\text{thrust}\rbrace = \lbrace x : x \not\in x \rbrace$

A forward by Justin Trudeu:

This book lead me to victory against the prime ministor of the UKnighted Cingdom

A forward by Lennard 'Leopard' Oiler:

Oiler? I hardly know her.

A forward by Feynman's Lectures:

Victor Vector-Vittore does an excellent job giving an overview all of human understanding. I'm no longer the place to go for the best physics.