Spiritual evolution is the progressive advance of mankind toward a state of things in which the light of ethical perfection shall be reflected from t… - Felix Adler

The radiant future stretches forth its arms toward us, and binds us to be willing servants to its work, willingly to accept those limitations of the individual will which are indispensable in the service of a far-off cause, a service which at the same time disciplines and ennobles the individual himself.

It may be impossible for a man by merely willing it to add wings to his body, but it is possible for any man, by merely willing it, to add wings to his soul. This perennial miracle of the moral nature is capable of happening at any time.

Love is the expansion of two natures in such fashion that each include the other, each is enriched by the other. Love is an echo in the feelings of a unity subsisting between two persons which is founded both on likeness and on complementary differences. Without the likeness there would be no attraction; without the challenge of the complementary differences there could not be the closer interweaving and the inextinguishable mutual interest which is the characteristic of all deeper relationships.