In Vino Veritas.
In Cervisiam Robur
In Sanguis Fidem.
Three fluids and three separate traits that they bear and provide. In wine there is truth; in beer there is strength; and in blood there is fidelity.
For myself, I say that the third, blood, and the fidelity it brings is the most important of the three. Any truth can be silenced and any strength overcome by treachery. Hence, the fidelity of blood, either that shared or that shed together is greatest.