Thomas Hobbes

"Covenants being but words and breath, have no force to oblige without the sword."

"The universe is all that exists, and exists eternally."

"Civil science is the geometry of the commonwealth."

"Silence gives consent."

"Time is the image of eternity."

"The truth of a proposition is never striven for as an end but only as a means."

"So that in the first place, I put for a general inclination of all mankind a perpetual and restless desire of power after power."

"A lie is an untruth spoken with the intent to deceive."

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

"The natural state of mankind, if we consider it without civil society, is a state of war."

"All motion is either straight or circular."

"The power of a man is his present means to obtain some future apparent good."

"Good and evil are names that signify our appetites and aversions."

"Words are the counters of wise men, but the money of fools."

"The first law of nature is self-preservation."

"Discord is the fruit of too much judging."

"Revenge is a kind of wild justice."

"The universe is body; that which is not body is nothing."

"Laughter is the passion that provokes those grimaces called smiling."

"All the conflicts of history have sprung from barbarism."

"The truth is the offspring of silence and unbiased reflection."

"Where there is no common power, there is no law."

"The two sovereign remedies for all discontents are hope and sleep."

"The natural condition of mankind is a condition of war."

"In such condition there is no place for industry, because the fruit thereof is uncertain."

"All sciences have a mutual connection and dependence upon each other."

"A man that has no assurance of the power and means to live well cannot make use of the liberty which the sovereign allows him."

"The desire of glory from conquest is a natural passion."

"The human mind is the most complex thing we know."

"The condition of man is a condition of war of everyone against everyone."