Plato

“Knowledge without justice ought to be called cunning rather than wisdom.”

“There is no harm in repeating a good thing.”

“Knowledge is true opinion.”

“Must not all things at the last be swallowed up in death?”

“Life must be lived as play.”

“The direction in which education starts a man will determine his future in life.”

“Poetry is nearer to vital truth than history.”

“Ignorance of all things is an evil neither terrible nor excessive, nor yet the greatest of all; but great cleverness and much learning, if they be accompanied by a bad training, are a much greater misfortune.”

“For good nurture and education implant good constitutions.”

“Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws.”

“Opinion is the medium between knowledge and ignorance.”

“He who is of calm and happy nature will hardly feel the pressure of age, but to him who is of an opposite disposition youth and age are equally a burden.”

“The rulers of the state are the only persons who ought to have the privilege of lying, either at home or abroad; they may be allowed to lie for the good of the state.”

“The blame is his who chooses: God is blameless.”

“When the tyrant has disposed of foreign enemies by conquest or treaty, and there is nothing more to fear from them, then he is always stirring up some war or other, in order that the people may require a leader.”

“Rhetoric is the art of ruling the minds of men.”

“The man who makes everything that leads to happiness depends upon himself, and not upon other men, has adopted the very best plan for living happily. This is the man of moderation, the man of manly character and of wisdom.”

“And what, Socrates, is the food of the soul? Surely, I said, knowledge is the food of the soul.”

“Thinking: the talking of the soul with itself.”

“The learning and knowledge that we have, is, at the most, but little compared with that of which we are ignorant.”

“Apply yourself both now and in the next life. Without effort, you cannot be prosperous. Though the land be good, You cannot have an abundant crop without cultivation.”