Thucydides

"The mediocre teacher tells; the good teacher explains; the superior teacher demonstrates; the great teacher inspires."

"Expect the worst, but hope for the best."

"Time is the justice that examines all offenders."

"The common good is not achieved by common methods."

"Idleness of the body invites disease; idleness of the mind invites despair."

"The absence of voices is consent."

"A man who wishes to make a profession of goodness in everything must necessarily come to grief among so many who are not good."

"The speaker who can most influence is not he who knows most, but he who speaks with most conviction."

"Every advantage has its disadvantage."

"The most terrible thing about man is his capacity for reason."

"Laws are the servants of society, not its masters."

"To realize one's own mortality is to begin to live properly."

"The pursuit of peace is often more dangerous than the pursuit of war."

"Character is not found in strength, but in resolution."

"The fear of the lord is not submission, but understanding."

"Words are like money; the less used, the greater their value."

"To blame the poor for their poverty is to blame the symptom, not the disease."

"It is not the strength of the body that matters, but the strength of character."

"A single conversation across the table with a wise man is worth a month's study of books."

"The mind that is wise mourns the loss of life; the heart that is noble celebrates its having been lived."

"To know thyself is the beginning of all wisdom."

"The secret of friendship is constant forgiveness."

"In times of conflict, even the smallest act of kindness becomes an act of revolution."

"The greatest wealth is health."

"A man is his own best friend or worst enemy."

"Memory is the mother of the muses."

"To be loved is to be known deeply."

"Envy is the greatest destroyer of unity."

"The wise man does not give the right answer, but asks the right question."

"What we fear reveals what we love."