The source of every crime, is some defect of the understanding; or some error in reasoning; or some sudden force of the passions. Defect in the understanding is ignorance; in reasoning, erroneous opinion.
Thomas HobbesHeresy is a word which, when it is used without passion, signifies a private opinion. So the different sects of the old philosophers, Academians, Peripatetics, Epicureans, Stoics, &c., were called heresies.
Thomas HobbesEmulation is grief arising from seeing one's self, exceeded or excelled by his concurrent, together with hope to equal or exceed him in time to come, by his own ability. But envy is the same grief joined with pleasure conceived in the imagination of some ill-fortune that may befall him.
Thomas HobbesThe end of knowledge is power ... the scope of all speculation is the performing of some action or thing to be done.
Thomas HobbesTo this war of every man against every man, this also in consequent; that nothing can be unjust. The notions of right and wrong, justice and injustice have there no place. Where there is no common power, there is no law, where no law, no injustice. Force, and fraud, are in war the cardinal virtues.
Thomas Hobbes