1. Heraclitus - Noun
2. Heraclitus - Proper noun
a presocratic Greek philosopher who said that fire is the origin of all things and that permanence is an illusion as all things are in perpetual flux (circa 500 BC)
Source: WordNetHeraclitus says that Pittacus, when he had got Alcæus into his power, released him, saying, "Forgiveness is better than revenge." Diogenes Laërtius
Both Empedocles and Heraclitus held it for a truth that man could not be altogether cleared from injustice in dealing with beasts as he now does. Plutarch
Knowledge of divine things for the most part, as Heraclitus says, is lost to us by incredulity. Plutarch
The natural philosopher Heraclitus said that man is naturally irrational. If this is true, as it is true, then everyone who enjoys futile glory should hide his face. Apollonius of Tyana
The "most extreme" followers of Heraclitus said that it is impossible to fix a name to anything. Howard Bloom
Aristotle and Heraclitus were both right. A equals A. But A does not equal A. Howard Bloom