Democritus

"Raising children is an uncertain thing; success is reached only after a life of battle and worry."

"Many much-learned men have no intelligence."

"Nothing exists except atoms and empty space; everything else is opinion."

"Nothing exists except atoms and empty space; everything else is opinion."

"Happiness resides not in possessions, and not in gold, happiness dwells in the soul."

"Everything existing in the universe is the fruit of chance and necessity."

"No power and no treasure can outweigh the extension of our knowledge."

"Everything existing in the universe is the fruit of chance and necessity."