Source: Chapter 14, “The Name of the Wind” (p. 113)
Context: Remember this son, if you forget everything else. A poet is a musician who can’t sing. Words have to find a man’s mind before they can touch his heart. And, some men’s minds are woeful small targets. Music touches their hearts directly, no matter how small or stubborn the mind of the man who listens.

“To deem us simply enemies is to lose the true flavor of our relationship. It was more like the two of us entered into a business partnership in order to more efficiently pursue our mutual interest of hating each other.”

Patrick Rothfuss book The Name of the Wind

Source: The Name of the Wind

“Auri stood, and in the circle of her golden hair she grinned and brought the weight of her desire down full upon the world.
And all things shook. And all things knew her will. And all things bent to please her.”

Patrick Rothfuss book The Slow Regard of Silent Things

Source: The Slow Regard of Silent Things

“Cruelty never helped the turning of the world.”

Patrick Rothfuss book The Slow Regard of Silent Things

Source: The Slow Regard of Silent Things

“Isn't that the way of the world? We want the sweet things, but we need the unpleasant ones.”

Patrick Rothfuss book The Name of the Wind

Source: The Name of the Wind

“… nothing in the world is harder than convincing someone of an unfamiliar truth.”

Patrick Rothfuss book The Wise Man's Fear

Source: The Wise Man's Fear

“Some things simply were too true to stay. Some merely came to visit for a while.”

Patrick Rothfuss book The Slow Regard of Silent Things

Source: The Slow Regard of Silent Things

“I have, of course, been called many other things. Most of them uncouth, although very few were unearned”

Patrick Rothfuss book The Name of the Wind

Source: The Name of the Wind (2007), Chapter 7, “Of Beginnings and the Names of Things” (p. 58)
Context: I have been called Kvothe the Bloodless, Kvothe the Arcane, and Kvothe Kingkiller. I have earned those names. Bought and paid for them.
But I was brought up as Kvothe. My father once told me it meant “to know.”
I have, of course, been called many other things. Most of them uncouth, although very few were unearned.
I have stolen princesses back from sleeping barrow kings. I burned down the town of Trebon. I have spent the night with Felurian and left with both my sanity and my life. I was expelled from the University at a younger age than most people are allowed in. I tread paths by moonlight that others fear to speak of during day. I have talked to gods, loved women, and written songs that make the minstrels weep.
You may have heard of me.

“Upon him I will visit famine and a fire.
Till all around him desolation rings
And all the demons in the outer dark
Look on amazed and recognize
That vengeance is the business of a man.”

Patrick Rothfuss book The Name of the Wind

Source: The Name of the Wind (2007), Chapter 43, “The Flickering Way” (p. 323)

“Ah,' the innkeeper said. 'So you were getting ready to drink then?'
'Tiny Gods, yes,' Bast said. 'To great excess. What the hell else is there to do?”

Patrick Rothfuss book The Wise Man's Fear

Source: The Wise Man's Fear

“There is a sort of camaraderie that rarely exists except between men who have fought the same enemies and know the same women.”

Patrick Rothfuss book The Name of the Wind

Source: The Name of the Wind

“My bad luck got tangled up with my bad decisions, and I'm paying for it.”

Patrick Rothfuss book The Wise Man's Fear

Source: The Wise Man's Fear

“No matter how you spend your life, your wit will defend you more often than a sword. Keep it sharp!”

Patrick Rothfuss book The Name of the Wind

Source: The Name of the Wind (2007), Chapter 40, “On the Horns” (p. 290)
Context: Any student of mine must be able to defend his ideas against an attack. No matter how you spend your life, your wit will defend you more often than a sword. Keep it sharp!

“There is a great deal of difference between a penis and a heart.”

Patrick Rothfuss book The Wise Man's Fear

Variant: There is a great difference between being fearless and being brave.
Source: The Wise Man's Fear