“We must remember what ruthless and utter destruction our own species has wrought, not only upon animals, such as vanished bison and the dodo, but upon its own inferior races. The Tasmanians . . . were entirely swept out of existence in a war of extermination waged by European immigrants, in the space if fifty years. Are we such apostles of mercy as to complain if the Martians warred in the same spirit?”

“Man is the only animal that deals in that atrocity of atrocities War. He is the only one that gathers his brethren about him and goes forth in cold blood and calm pulse to exterminate his kind. He is the only animal that for sordid wages will march out... and help to slaughter strangers of his own species who have done him no harm and with whom he has no quarrel.... And in the intervals between campaigns he washes the blood off his hands and works for the universal brotherhood of man with his mouth.”

“If religions are diseases of the human psyche, as the philosopher Grintholde asserts, then religious wars must be reckoned the resultant sores and cankers infecting the aggregate corpus of the human race. Of all wars, these are the most detestable, since they are waged for no tangible gain, but only to impose a set of arbitrary credos upon another's mind.”

“There is an efficiency inspired by love which goes far beyond and is much greater than the efficiency of ambition; and without love, which brings an integrated understanding of life, efficiency breeds ruthlessness. Is this not what is actually taking place all over the world? Our present education is geared to industrialization and war, its principal aim being to develop efficiency; and we are caught in this machine of ruthless competition and mutual destruction. If education leads to war, if it teaches us to destroy or be destroyed, has it not utterly failed?”

“Science, already oppressive with its shocking revelations, will perhaps be the ultimate exterminator of our human species - if separate species we be - for its reserve of unguessed horrors could never be borne by mortal brains if loossed upon the world.”

“We must come down from our heights, and leave our straight paths, for the byways and low places of life, If we would learn truths by strong contrasts; and in hovels, in forecastles, and among our own outcasts in foreign lands, see what has been wrought upon our fellow-creatures by accident, hardship, or strife.”