With liberty and justice for all. 

In response to a claim that liberalism does not advocate equality.

The foundational documents of liberalism stress both freedom and equality.  "We hold these truths to be self-evident, that all men are created equal..."

We know those high ideals were expressed by a man who owned slaves, and that while we are much closer to true equality today, we still have a way to go.  Still, one of the two principles that unite liberals is the idea of equality, in the sense of equal rights.  The liberal movement has consistently been in that direction, with equality for Negros first, then for women, maybe someday for homosexuals.  

By equality, I mean equality before the law  obviously all men are not equal at birth, but the law should not favor those born with greater advantages.  Sometimes equality and freedom conflict.  My freedom to own slaves conflicts with the slave's equality under the law.  But more often the two ideals are complementary.  My equal rights give me the freedom to walk down the sidewalk without the law telling me I must step into the gutter to allow a better man to pass.