"...truth must be used for freedom: young people also have a spontaneous "desire for freedom". And what does it mean to be free? It means to know how to use one's freedom in truth-to be "truly" free. To be truly free does not at all mean doing everything that pleases me, or doing what I want to do. Freedom contains in itself the criterion of truth, the discipline of truth. To be truly free means to use one's own freedom for what is a true good. Continuing therefore: to be truly free means to be a person of upright conscience, to be responsible, to be a person 'for others'."
Blessed John Paul II, Dilecti Amici, 13.