Plato

"Music gives a soul to the universe, wings to the mind, flight to the imagination, and life to everything."

"The prison-house is ever present to the mind of the prisoner."

"True friendship is a plant of slow growth."

"The highest knowledge is to understand the limitations of your knowledge."

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

"The measure of intelligence is the ability to change."

"Wonder is the beginning of wisdom."

"Wealth consists not in having great possessions, but in having few wants."

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

"The most effective way to live is as a compound personality."

"Friendship requires a religious intensity of virtue."

"Art is born of the attempt to understand our environment."

"To be is to do."

"Opinion is the medium between knowledge and ignorance."

"No man has the right to be an amateur in the matter of physical training."

"The very secret of life is to have a task that you devote your whole life to."

"Ignorance is the root and stem of all evil."

"That man is wisest who, like Socrates, realizes that his wisdom is worth nothing."

"There will be no end to the troubles of the world until philosophers become kings."

"Hold on to the truth with the same tenacity with which you hold on to a false belief."

"To a wise man, even life is a misfortune."

"The price good men pay for indifference to public affairs is to be ruled by evil men."

"Knowledge is power."

"Some persons of noble blood do not so much as know their own names."

"The one ingredient that will never show on any label is love."

"The beautiful is in nature the expression of the useful."

"Everything that the mind has created can be recreated by the mind."

"Be kind, for everyone you meet is fighting a hard battle."

"The punishment of the wise who refuse to take part in the government is to live under the government of the unwise."

"In this life we cannot do great things. We can only do small things with great love."