Thomas Hobbes

"Nothing so much requires a guard as the mouth in times of danger."

"The utility of all things is the measure of their excellence."

"Civil society was formed to protect natural rights."

"Rebellion is, by the error of them that in the beginning thereof are authors of it, punishable as treason."

"The secret thoughts of a man run over all things, holy, profane, clean, obscene, grave, and light."

"Where there is no property there is no injustice."

"All generous minds have a horror of what are commonly called 'facts'."

"The life of a tyrant is never secure."

"Monarchy is the most natural form of government."

"The weakest man is he who knows not that he is weak."

"To understand God's thoughts, we must study mathematics, for these are a sort of divine language by which He has written the universe."

"Men are continually in competition for honor and dignity."

"The estate of man can be no other than a state of war of each against all."

"Sudden glory is the passion which maketh those grimaces called laughter."

"The natural desire of good men is knowledge."

"A man's actions are determined by his appetites and aversions."

"Language is not only the instrument of communication but also of thought."

"In the state of nature, profit is the measure of right."

"The obligation of subjects to the sovereign is understood to last as long as the power lasts by which he is able to protect them."

"Sense and imagination are one thing."

"The cause of a man's continued desire of what he already hath is the necessity of his perseverance."

"All men are desirous of honor and preferment."

"The passion to be reckoned upon is fear."

"Arts of public happiness are arts of peace."

"Commerce and mutual understanding create the bonds of peace between nations."

"The right of the strongest is the most natural right of all."

"Every man has a right to everything in the state of nature."

"History is a set of lies agreed upon."

"The appetites of men are the rule of their actions."

"Egoism is the very essence of human nature."