I found the first quote while surfing through blogs on blogclicker.com. I don't recall where I heard the second quote. Both quotes should make everyone who mindlessly worships at the altar of tolerance think.
"Tolerance is the virtue of a man without convictions." G. K. Chesterton
"Tolerance is the transition stage from one orthodoxy to another."
And one more I just remembered: "Tolerance is the last virtue of a virtueless society." Quoted by Dr. D. James Kennedy on his tv show, The Coral Ridge Hour.
Doesn't it make you think?