Love requires peace, love will dream; it cannot live upon the remnants of our time and our personality.

Love is moral even without legal marriage, but marriage is immoral without love.

The belief that we some day shall be able to prevent war is to me one with the belief in the possibility of making humanity really human.

The emancipation of women is practically the greatest egoistic movement of the nineteenth century, and the most intense affirmation of the right of the self that history has yet seen.

the higher the development of women, the more they suffer from the 'patriotic' mandate to bear many children to replace the nation's losses. For they know that, from the point of view of their personal development as well as that of the race, fewer but better children are to be preferred.

Nothing would more effectively further the development of education than for all flogging pedagogues to learn to educate with the head instead of with the hand.

All philanthropy ... is only a savory fumigation burning at the mouth of a sewer. This incense offering makes the air more endurable to passers-by, but it does not hinder the infection in the sewer from spreading.