Heraclitus

"Change is the only constant in life."

"No one steps in the same river twice."

"The path up and down are one and the same."

"Conflict is the father of all things."

"Everything flows, nothing stands still."

"Big results require big ambitions."

"Character is destiny."

"Out of every hundred men, ten shouldn't even be there."

"It is wise to listen, not to me, but to the Word."

"The only way to deal with an unfree world is to become so absolutely free that very existence is an act of rebellion."

"The most beautiful thing in the world is freedom of thought."

"Healing requires getting to the root of a problem."

"All things come into being in accordance with this Logos."

"Obscurity and modesty are the attributes of wisdom."

"The road up and down is one and the same."

"Much learning does not teach wisdom."

"Whosoever wishes to know about the world must learn about it in its particular details."

"This world was not created by any of the gods or men, but it always was, is, and ever will be."

"The thunderbolt steers all things."

"Fire is primary; everything is the transformation of fire."

"Ashes to ashes, dust to dust."

"The people must fight for the law as for a wall."

"War is the father and king of all."

"Strife is justice."

"The wise is one only, and it is unwilling and willing to be called by the name of Zeus."

"A fool's mind is convinced by the speech of the moment."

"Knowing yourself is the beginning of all wisdom."

"The path to the sky is the same as the path to the earth."

"For those awake, the world is one."

"Sleep is a state of mind that the waking cannot know."