How could a state be governed, or protected in its foreign relations if every individual remained free to obey or not to obey the law according to his private opinion.

I think, therefore matter is capable of thinking.

There be as many persons of a king, as there be petty constables in his kingdom. And so there are, or else he cannot be obeyed. But I never said that a king, and every one of his persons, are the same substance.

The privilege of absurdity; to which no living creature is subject, but man only.

Thoughts are to the Desires as Scouts and Spies, to range abroad, and find the way to the things Desired.

And therefore in geometry (which is the only science that it hath pleased God hitherto to bestow on mankind), men begin at settling the significations of their words; which settling of significations, they call definitions, and place them in the beginning of their reckoning.

As, in Sense, that which is really within us, is (as I have said before) only Motion, caused by the action of external objects, but in appearance; to the Sight, Light and Color; to the Ear, Sound; to the Nostril, Odor, &c.