He who can be, and therefore is, another's, and he who participates in reason enough to apprehend, but not to have, is a slave by nature.

In all well-attempered governments there is nothing which should be more jealously maintained than the spirit of obedience to law, more especially in small matters; for transgression creeps in unperceived and at last ruins the state, just as the constant recurrence of small expenses in time eats up a fortune.

The only stable principle of government is equality according to proportion, and for every man to enjoy his own.

... a science must deal with a subject and its properties.

... the friendship of worthless people has a bad effect (because they take part, unstable as they are, in worthless pursuits, and actually become bad through each other's influence). But the friendship of the good is good, and increases in goodness because of their association. They seem even to become better men by exercising their friendship and improving each other; for the traits that they admire in each other get transferred to themselves.

The antidote for fifty enemies is one friend.

He who cannot be a good follower cannot be a good leader.