Almost every episode of Criminal Minds begins and ends with a quote. This is a comprehensive list of the Season 4 Quotes, the episodes they were in, and which character said them.

The quotes used on the show might not be the "entire" actual quote and may be edited for the shows purposes.

Episode	Quote	Author	Who Said It
4x01 "Mayhem" (1 quote)	"Never think that war, no matter how necessary, nor how justified, is not a crime."	Ernest Hemingway	Hotch
4x02 "The Angel Maker" (2 quotes)	“We all die. The goal isn't to live forever, the goal is to create something that will.”	Chuck Palahnuik	Hotch
	“The past is our definition. we may strive, with good reason, to escape it, or to escape what is bad in it, but we will escape it only by adding something better to it.”	Wendell Berry	Hotch
4x03 "Minimal Loss" (2 quotes)	"To follow by faith alone is to follow blindly."	Benjamin Franklin	Reid
	"Reason is not automatic. Those who deny it cannot be conquered by it."	Ayn Rand	Prentiss
4x04 "Paradise" (2 quotes)	"A fool's paradise is a wise man's hell."	Thomas Fuller	Hotch
	"Things are not always what they seem; the first appearance deceives many; the intelligence of a few perceives what has been carefully hidden."	Phaedrus	Hotch
4x05 "Catching Out" (2 quotes)	"Plenty sit still. Hunger is a wanderer."	Zulu proverb	Prentiss
	"Beyond the East the sunrise, beyond the West the sea, And the East and West the wander-thirst that will not let me be."	Gerald Gould	Prentiss
4x06 "The Instincts" (2 quotes)	"Who speaks to the instincts speaks to the deepest in mankind and finds the readiest response."	Amos Bronson Alcott	Hotch
	"I think the truly natural things are dreams, which nature can't touch with decay."	Bob Dylan	Reid
4x07 "Memoriam" (2 quotes)	“What was silent in the father speaks in the son, and often I found in the son the unveiled secret of the father.”	Friedrich Nietzsche	Reid
	“There is no refuge from memory and remorse in this world. The spirits of our foolish deeds haunt us, with or without repentance.”	Gilbert Parker	Reid
4x08 "Masterpiece" (2 quotes)	"Let us consider that we are all insane. It will explain us to each other; it will unriddle many riddles..."	Mark Twain	Rossi
	"Man must evolve for all human conflict a method which rejects revenge, aggression and retaliation. The foundation of such a method is love."	Martin Luther King, Jr.	Rossi
4x09 "52 Pickup" (2 quotes)	"The minute people fall in love, they become liars."	Harlan Ellison	Prentiss
	"Cleanliness becomes more important when godliness is unlikely."	P.J. O'Rourke	Rossi
4x10 "Brothers in Arms" (2 quotes)	"We are all brothers under the skin, and I, for one, would be willing to skin humanity to prove it."	Ayn Rand	Morgan
	"...for he today who sheds his blood with me shall be my brother."	William Shakespeare	Morgan
4x11 "Normal" (2 quotes)	"Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats."	H.L. Mencken	Hotch
	"There's no tragedy in life like the death of a child. Things never get back to the way they were."	President Dwight Eisenhower	Rossi
4x12 "Soul Mates " (2 quotes)	"No mortal can keep a secret. If his lips are silent, he chatters with his fingertips; betrayal oozes out of him at every pore."	Sigmund Freud	Reid
	"Delay is the deadliest form of denial."	British Historian C. Northcote Parkinson	Morgan
4x13 "Bloodline" (2 quotes)	"There is no doubt that it is around the family and the home that all the greatest virtues, the most dominating virtues of human society, are created, strengthened and maintained."	Winston Churchill	Prentiss
	"The strength of a family, like the strength of an army, is in its loyalty to each other."	Mario Puzo	Hotch
4x14 "Cold Comfort" (2 quotes)	"And so, all the night-tide, I lay down by the side. Of my darling, my darling, my life and my bride. In the sepulchre there by the sea. In her tomb by the sounding sea."	Edgar Allen Poe	JJ
	"For those who believe, no proof is necessary. For those who don't believe, no proof is possible."	Stuart Chase	Rossi
4x15 "Zoe's Reprise" (2 quotes)	"I never teach my pupils; I only attempt to provide the conditions in which they can learn."	Albert Einstein	Rossi
	"In youth we learn; in age we understand."	Austrian novelist, Marie von Ebner-Eschenbach	Rossi
4x16 "Pleasure is my Business" (1 quote)	"The prostitute is not, as feminists claim, the victim of men, but rather their conqueror, an outlaw, who controls the sexual channels between nature and culture."	Camille Paglia	Hotch
4x17 "Demonology" (1 quote)	"He who does not punish evil, commands it to be done."	Leonardo Davinci	Prentiss
4x18 "Omnivore" (2 quotes)	“Fate is not satisfied with inflicting one calamity.”	Roman author Publilius Syrus	Hotch
	“Men heap together the mistakes of their lives, and create a monster they call destiny.”	John Hobbes	Hotch
4x19 "House On Fire " (2 quotes)	"We all live in a house on fire, no fire department to call; no way out."	Tennessee Williams	Hotch
	"I have loved to the point of madness; That which is called madness, That which to me, is the only sensible way to love."	Francoise Sagan	Hotch
4x20 "Conflicted" (2 quotes)	"Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it."	Terry Pratchett	Reid
	"Monsters are real, and ghosts are real too. They live inside us, and sometimes, they win."	Stephen King	Reid
4x21 " A Shade of Gray" (2 quotes)	"To lose a child is to lose a piece of yourself."	Dr. Burton Grebin	Prentiss
	"Without a family, man, alone in the world, trembles with the cold."	Andre Maurois	Rossi
4x22 "The Big Wheel" (2 quotes)	"In order for the light to shine so brightly, the darkness must be present."	Francis Bacon	Hotch
	"No matter how dark the moment, love and hope are always possible."	George Chakiris	Morgan
4x23 "Roadkill" (2 quotes)	“I'm not sure about automobiles. With all their speed forward they may be a step backward in civilization.”	Booth Tarkington	Hotch
	“The human voice can never reach the distance that is covered by the still small voice of conscience.”	Mahatma Ghandi	JJ
4x24 "Amplification" (2 quotes)	"It will become fine dust over all the land of Egypt and it will become boils breaking out with sores on man and beast through all the land of Egypt."	Exodus 9:9	Reid
	"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it."	Helen Keller	Reid
4x25/26 "To Hell...And Back" (2 quotes)	"If there were no hell, we would be like the animals. No hell, no dignity."	Flannery O'Connor	Hotch