There's nothing wrong in suffering, if you suffer for a purpose. Our revolution didn't abolish danger or death. It simply made danger and death worthwhile.

The world state must begin; it can only begin, as a propaganda cult, or as a group of propagandist cults, to which men and women must give themselves and their energies, regardless of the consequence to themselves The activities of a cult which sets itself to bring about the world-state would at first be propagandist, they would be intellectual and educational, and only as a sufficient mass of opinion and will had accumulated would they become to a predominant extent politically constructive. Such a cult must direct itself particularly to the teaching of the young.

We must not allow the clock and the calendar to blind us to the fact that each moment of life is a miracle and mystery.

The true objection to slavery is not that it is unjust to the inferior but that it corrupts the superior.

By the toll of a billion deaths man has bought his birthright of the earth, and it is his against all comers; it would still be his were the Martians ten times as mighty as they are. For neither do men live nor die in vain.

Things that would have made fame of a less clever man seemed tricks in his hands. It is a mistake to do things too easily.

Nothing leads so straight to futility as literary ambitions without systematic knowledge.