An incomplete list for all the quotes that appear in the loading screen.
"Revenge, when weak, begets a second crime." - Racine
"Fanaticism appears where a genius surrounds himself with a whole bunch of idiots." - Paul Carvel
"Nothing is more reliable than a man whose loyalty can be bought for hard cash." - The Ninth Gate, Balkan
"Singleness of purpose is one of the chief essentials for success in life, no matter what may be one's aim." - John Rockefeller
"Nonviolence is a powerful and just weapon, which cuts without wounding and ennobles the man who wields it. It is a sword that heals." - Martin Lurther King, Jr.
"Anger is a short madness." - Horace
"I have no terror of death. It is coming of death that terrifies me." - Oscar Wilde
"The further back you look, the further forward you can see." - Winston Churchill
"To hear the noise of thunder is no sign to quick to hear." - Sun Tzu
"He who excels at resolving difficulties does so before they arise." - Sun Tzu
"To secure ourselves against defeat lies in our own hands, but the opportunity of defeating the enemy is provided by the enemy himself." - Sun Tzu
"The people had lost the government's confidence. If that is the case, would it not be simpler if the government simply dissolved the people." - Bertolt Brecht
"The things you own end up owning you." - Fight Club, Tyler
"The superior man does not wish to show himself elegant-looking as a jade, but prefer to be coarse-looking as an ordinary stone." - Laozi
"When the best leader's work is done the people say, 'We did it ourselves.'" - Laozi
"Failure is the foundation of success." - Laozi
"He who talks more is sooner exhausted." - Laozi
"The wise in its regular course does nothing, and so there is nothing which it does not do." - Laozi
"Life and death are one thread, the same line viewed from different sides." - Laozi
"Wherever a host is stationed, briars and thorns spring up." - Laozi
"The journey of a thousand miles starts from beneath your feet." - Laozi
"The earth has a skin and that skin has diseases, one of its diseases is called man." - Friedrich Nietzsche
"Be not ashamed of mistakes and thus make them crimes." - Confucius
"I seek not to know the answers, but to understand the questions." - Confucius
"The real fault is to have faults and not amend them." - Confucius
"Acquire new knowledge whilst thinking over the old, and you may become a teacher of others" - Confucius
"When we see men of worth, we should think of equaling them; when we see men of a contrary character, we should turn inwards and examine ourselves." - Confucius
"Learning without thought is labor lost; thought without learning is perilous." - Confucius
"By nature, men are nearly alike; by practice, they get to be wide apart." - Confucius
"One who can move mountains start with the little stones." - Confucius
"A slight impatience ruins a great project." - Confucius
"If it bleeds, we can kill it." - Predator, Butch
"There are only two forces that unite men - fear and interest." - Napoleon
"Association with a fool is tyrannical to the soul" - Hazrat Ali
"All power is a permanent conspiracy." - Honoré de Balzac
"The cemeteries are full of indispensable men." - Georges Clemenceau
"The social existence of men determines their consciousness." - Mao Zedong
"Politics is war without bloodshed while war is politics with bloodshed." - Mao Zedong
"The history of mankind is one of continuous development from the realm of necessity to the realm of freedom." - Mao Zedong
"A fool can ask more questions than ten men can answer." - Lenin
"Trust is good, but control is better..." - Lenin
"A demagogue must be neither an educated nor an honest man; he has to be an ignoramus and a rogue." - Aristophanes
"Sit on the bank of a river and wait: Your enemy's corpse will soon float by."