Heraclitus

"Every problem contains within itself the seeds of its own solution."

"Man cannot step into the same river twice, for it is not the same river and he is not the same man."

"Big results require big ambitions."

"Opposition brings concord. Out of discord comes the fairest harmony."

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

"Strife is the father of all things."

"Character is destiny."

"The only constant in life is change itself."

"All things flow, nothing stands still."

"You could not step twice into the same rivers; for other waters are ever flowing on to you."

"Wisdom is only in one thing, in getting to know the thought by which all things are steered everywhere."

"The sun is new each day."

"War is the father of all things and the king of all things."

"Those who are awake live in a shared world, but those asleep turn aside into private worlds."

"A man's character is his fate."

"To God, all things are fair and good and just; to men, some things are just and some unjust."

"Fire is the most fundamental element; all things are processes of fire."

"Moderation is the greatest virtue."

"Self-taught, self-learned men are often terrible fools and idiots."

"The hidden attunement is better than the obvious."

"Thinking is common to all."

"It is better to hide ignorance, but it is hard to do when one rests and drinks and eats with others."

"Everything moves and nothing stands still."

"The eternal flux is the fundamental nature of reality."

"Even sleepers are at work and collaborating on what goes on in the world."

"Listening to the Logos is common to all, yet most live as if they have understanding only for themselves."

"The world does not become gradually warmer, nor does it gradually cool, but it happens by sudden violent upheavals."

"Uphill and downhill are the same path."

"The origin of all conflict is the struggle to preserve power."

"Conceit is the disease of honor."