"Love one another."
In what way is love to be expressed?
Not, surely, in any way possible. Then judgment asks "what is possible?" Desire can turn that question into a search for - even an obsession with - how to make the desired expression possible.
Love is best expressed in the way in which it will most clearly and completely be experienced by the other - partner or child, friend or stranger - as unconditional love. While we must be true to ourselves at all times, when love calls for compromising, or even giving up, our wishes in the moment - when it calls for choosing love over wishes - the compensation for choosing love is growth and the peace that comes from being true to our deepest values.