Plato

"Knowledge which is acquired under compulsion obtains no hold on the mind."

"Pleasure and pain are the first perceptions of children."

"The true competitor does not compete for the sake of competing."

"When the mind is thinking, it is talking to itself."

"The worst of all deceptions is self-deception."

"To know thyself is the beginning of wisdom."

"Art is the imitation of nature."

"The soul is dyed by its thoughts."

"Silence is a profound melody, for those who can hear it."

"We are dying from our thoughts."

"The highest realms of thought are impossible to reach without first attaining an understanding of the lowest."

"Rhetoric is the art of winning minds."

"If women are expected to do the same work as men, we must teach them the same things."

"The measure of a man is what he does with absolute power."

"Excess of ceremony shows want of breeding."

"What is honored in a country will be cultivated there."

"The first decree of the educated man is fidelity to truth."

"Music is a moral law. It gives soul to the universe, wings to the mind, flight to the imagination."

"Never discourage anyone who continually makes progress, no matter how slow."

"A person is wise in proportion as they listen to more advice than they give."

"The affinity of all physical phenomena is the root of all science."

"The fundamental cause of trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt."

"Those who tell the stories rule the society."

"Astronomy compels the soul to look upward."

"The city-state is by nature clearly prior to the family and to the individual."

"And so it is, that both the rich and the poor of the earth shall find words with God on an equal standing."

"The worst evil is that we are not willing to admit we are evil."

"Tyranny is the worst evil because it poisons the entire nation."

"Do not train children to learning by force and harshness, but direct them to it by what amuses and delights them."

"Desire is the very essence of man."