Lord Varys to Tyrion Lannister:

“Power is a curious thing. Three great men, a king, a priest and a rich man. Between them stands a common sellsword. Each great man bids the sellsword kill the other two. Who lives, who dies? Power resides where men believe it resides. It’s a trick. A shadow on the wall, and a very small man can cast a very large shadow”.  

Lord Varys to Lord Eddard Stark:

“The High Septon once told me that, As We Sin, So Do We Suffer. If that’s true, Lrd Eddard, tell me…why is always the innocents who suffers the most, when you high lords play your game of thrones?”

Lord Varys to Oberyn Martell:

“When I see what desire does to people, what it's done to this country, I am very glad to have no part in it. Besides, the absence of desire leaves one free to pursue other things”.

Lord Varys to Little Finger:

“Thwarting you has never been my primary ambition, I promise you. Although, who doesn't like to see their friends fail now and then”.

Lord Varys to King Robert Baratheon:

“

I understand your misgivings, my lord. Truly, I do. It is a terrible thing we must consider, a vile thing. Yet we who presume to rule must sometimes do vile things for the good of the realm. Should the gods grant Daenerys a son, the realm will bleed”.