 To illustrate: at the constitutional (second) and legislative (third) stages, the parties specify basic liberties such as “freedom of thought” into more particular rights, like the right to free political speech. The right to political speech is itself then further specified as the right to criticize the government, the rights protecting the press from political interference, and so on. Through the four-stage sequence, the parties also adjust the basic liberties to fit with one another and with other values, always aiming for an overall scheme of liberties that will best enable citizens to develop and exercise their two moral powers and pursue their determinate conceptions of the good (PL, 289–371).