Nothing is more difficult, and therefore more precious, than to be able to decide. Napoleon Bonaparte

Decide promptly, but never give any reasons. Your decisions may be right, but your reasons are sure to be wrong.  Lord Mansfield

If something can go wrong it will. Murphy's Law

Separation penetrates the disappearing person like a pigment and steeps him in gentle radiance. 
Walter Benjamin

A true friend is one soul in two bodies. Aristotle