Where in the creed does it call for liberalism or conservatism?

The two main streams of Christianity, liberalism and conservatism (whether Protestant or Catholic), both lead to heterodoxy if unbalanced by orthodoxy and tradition.

Conservatism must remember that the Gospel of Jesus Christ is not only his earthly words but just as equally his actions. Moreover, it was not suffering in itself that is salvific, but Jesus' commitment, obedience, and fidelity through it.

Liberalism must remember that what theology needs is a hermeneutics of faith, not merely a secular hermeneutics of the latest philosophical fad. Liberalism would do good to remember an old medieval limerick regarding how we ought to read scripture: Littera gesta docet, quid credas allegoria, moralis quid agas, quo tendas anagogia. "The letter speaks of deeds, allegory about the faith, the moral about our actions, analogy about our destiny." Let them not neglect our faith and our collective destiny.

The only way to avoid sliding into one extreme or the other is to strive for fidelity in our collective and historical faith. Through adhering to the tradition of our faith we find sustenance to continue onward amongst so many temptations to go astray. The beauty of our faith is that it is historical. It doesn't ask us to believe random notions created by the recent ideological sway in society, lacking any historical credibility like so many self-created religious groups of the last century. But, just as equally it demands of us to remain committed to action, not merely passive in reciting beliefs. It eternally calls us to become more than we are today, it does not allow us the comfort of complacency. The reason why our faith is able to do this is because of the history of countless saints who have come before us and blazed the path in which we follow. Either extreme of liberalism or conservatism neglects part of that historical faith. It either ignores our collective faith and destiny or it neglects our struggle for growth and action.

It does good to remember that the Church does not count time in decades, like our culture does, but in centuries. And we ought to remember that the historical Church is not liberal or conservative, rather it was, is and remains, one, holy, apostolic and catholic.