The world belongs to those who think and act with it, who keep a finger on its pulse.

All faith consists essentially in the recognition of a world of spiritual values behind, yet not apart from, the world of natural phenomena.

It is useless for the sheep to pass resolutions in favor of vegetarianism, while the wolf remains of a different opinion.

If we feel that any habit or pursuit, harmless in itself, is keeping us from God and sinking us deeper in the things of earth; if we find that things which others can do with impunity are for us the occasion of falling, then abstinence is our only course. Abstinence alone can recover for us the real value of what should have been for our help but which has been an occasion of falling. ... It is necessary that we should steadily resolve to give up anything that comes between ourselves and God.

Public opinion, a vulgar, impertinent, anonymous tyrant who deliberately makes life unpleasant for anyone who is not content to the average person.

Even the paradise of fools is not an unpleasant abode while it is inhabitable.

Over-population is a phenomenon connected with the survival of the unfit, and it is a mechanism which has created conditions favourable to the survival of the unfit and the elimination of the fit.