“The best -- or chasing it -- is the worst enemy of the good.”
“Your Worst Enemy Could Be Your Best Friend && Your Best Friend Your Worst Enemy”
“If one must have a worst enemy, it is best to choose a former lover, who will know best how to tempt and torment.”
“The best is the enemy of good.”
“And I was holding someone who was destined to be my best friend, or possibly my worst enemy.”
“The great enemy of the life of faith in God is not sin, but the good which is not good enough. The good is always the enemy of the best.”