Secrecy, being an instrument of conspiracy, ought never to be the system of a regular government.

Every law is an infraction of liberty.

A civilized society must count animals as worthy of moral consideration and ethical treatment. The question is not, Can they reason? nor Can they talk? but, Can they suffer?

The law of England has established trial by judge and jury in the conviction that it is the mode best calculated to ascertain the truth.

Natural rights is simple nonsense: natural and imprescriptible rights, rhetorical nonsense—nonsense upon stilts.

I don't care whether animals are capable of thinking; all I care about is that they are capable of suffering!

The day may come when the rest of the animal creation may acquire those rights which never could have been withholden from them but by the hand of tyranny.