Intensely selfish people are always very decided as to what they wish. They do not waste their energies in considering the good of others.

In a few generations more, there will probably be no room at all allowed for animals on the earth: no need of them, no toleration of them. An immense agony will have then ceased, but with it there will also have passed away the last smile of the world's youth.

The song that we hear with our ears is only the song that is sung in our hearts.

It is a kind of blindness--poverty. We can only grope through life when we are poor, hitting and maiming ourselves against every angle.

Love, the one supreme, unceasing source of human felicity, the one sole joy which lifts the whole mortal existence into the empyrean, was by it [Christianity] degraded into the mere mechanical action of reproduction.

There is no more terrible woe upon earth than the woe of the stricken brain, which remembers the days of its strength, the living light of its reason, the sunrise of its proud intelligence, and knows that these have passed away like a tale that is told.

Coleridge cried; "O God, how glorious it is to live!" Renan asks, "O God, when will it be worth while to live?" In Nature we echo the poet; in the world we echo the thinker.