Denis Diderot

"Kindness is never wasted."

"Strength grows through perseverance."

"Fear is only as deep as the mind allows."

"History teaches us the consequences of our actions."

"Philosophy asks the right questions."

"Literature preserves human experience."

"War destroys what peace builds."

"Motivation comes from within."

"Inspiration strikes the prepared mind."

"Relationships require honesty and trust."

"The first step toward philosophy is incredulity."

"Man will never be free until the last king is strangled with the entrails of the last priest."

"Skepticism is the first step toward truth."

"One should as a rule respect public opinion in so far as is necessary to avoid starvation and to prevent one's being locked up, but anything that goes beyond this is voluntary submission to an unnecessary tyranny."

"The world is full of people who have never read a book or seen a painting that interests them."

"Genius is found in conversation."

"We must work hard to rid ourselves of the idea that education is the transmission of knowledge."

"The greatest masterpiece in literature is only a shadow of what we imagine in our heart."

"There is no true love except in imagination."

"To be occupied in doing good is the truest way to be happy."

"We are not put on this earth for ourselves alone, but are placed here for the whole community."

"Science alone can solve the problems of science."

"A thing is not necessarily true because a man dies for it."

"My thoughts are my company."

"The worst readers are those who traverse the libraries as soldiers maraud through cities, taking up as plunder whatever happens to strike their fancy."

"Inequality is the source of all social evil."

"I am convinced that all the arts are brothers, all leading toward the same end."

"Whoever refuses to reason is a bigot; whoever is afraid to reason is a coward; and whoever despises reason is a fool."

"The surest way to make a man your enemy is to tell him you think him a fool."

"If I were wicked and designing, I should poison your coffee, but I love you."