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

Information is the key. You need to learn your enemies’ strengths and strategies. You need to learn which of your friends are not your friends.

Lord Varys

Any fool with a bit of luck can find himself born into power. But earning it for yourself, that takes work.

Lord Varys