An optimist is a person who sees only the lights in the picture, whereas a pessimist sees only the shadows. An idealist, however, is one who sees the light and the shadows, but in addition sees something else: the possibility of changing the picture, of making the lights prevail over the shadows.

There is a universal element in man which he can assert by so acting as if the purpose of the Universe were also his purpose. It is the function of the supreme ordeals of life to develop in men this power, to give to their life this distinction, this height of dignity, these vast horizons.

An optimist is a person who sees only the lights in the picture, whereas a pessimist sees only the shadows. An idealist, however, is one who sees the light and the shadows, but in addition sees something else: the possibility of changing the picture, of making the lights prevail over the shadows.

The truth which has made us free will in the end make us glad also. Every outcry against the oppression of some people by other people, or against what is morally hideous is the affirmation of the principle that a human being as such is not to be violated. A human being is not to be handled as a tool but is to be respected and revered.

The ethical manifold, conceived of as unified, furnishes, or rather is, the ideal of the whole.

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.

We cannot adopt the way of living that was satisfactory a hundred years ago. The world in which we live has changed, and we must change with it.