Democritus

"In truth we know nothing, for truth is at the bottom of a well."

"It is better to suffer injury than to do it."

"The world and the universe are infinite and were not created."

"Moderation increases enjoyment and makes pleasure lasting."

"A man should strive to be master of his own passions and not their slave."

"The laws are not the guardians of justice; they are merely servants of the people."

"Fear is an enemy to those who lack courage."

"The sweetest sleep is that earned by honest labor."

"A mind without education is like a body without sight."

"Many who appear to be successful are inwardly unhappy."

"The universe has no beginning and no end."

"I would rather discover one true cause than gain the throne of Persia."

"The heavens are infinite and contain infinite worlds."

"Seek wisdom, not wealth and fame."

"The pursuit of truth requires courage."

"A grateful heart is a doorway to happiness."

"The mind is not a vessel to be filled, but a flame to be kindled."

"Truth is hidden in the depths, like a precious gem in the earth."

"To live poorly while pursuing knowledge is nobler than living well in ignorance."

"The secret to success is finding what you love and doing it with passion."

"Nature does nothing without purpose or effect."

"The smallest units of matter are eternal and infinite."

"A life lived for others is a life worth living."

"The wise man is not he who merely knows many things, but he who understands them."

"Consider the smallest fragment and imagine infinity."

"The pursuit of pleasure should be measured by reason."

"In the arena of human life, the honors and rewards fall to those who show their good qualities in action."

"The atoms are infinite in number and infinite in the variety of their shapes."

"A person is only wretched when they believe themselves to be so."

"The void is as real as matter itself."