If a single cell, under appropriate conditions, becomes a man in the space of a few years, there can surely be no difficulty in understanding how, under appropriate conditions, a cell may, in the course of untold millions of years, give origin to the human race.

Rightness expresses of actions, what straightness does of lines; and there can no more be two kinds of right action than there can be two kinds of straight lines.

The tyrant is nothing but a slave turned inside out.

Progress is not an accident, not a thing within human control, but a beneficent necessity ... due to the working of a universal law. So surely must the things we call evil and immorality disappear; so surely must man become perfect.

If on one day we find the fast-spreading recognition of popular rights accompanied by a silent, growing perception of the rights of women, we also find it accompanied by a tendency towards a system of non-coercive education--that is, towards a practical illustration of the rights of children.

Mother, when your children are irritable, do not make them more so by scolding and fault-finding, but correct their irritability by good nature and mirthfulness. Irritability comes from errors in food, bad air, too little sleep, a necessity for change of scene and surroundings; from confinement in close rooms, and lack of sunshine.

The child takes most of his nature of the mother, besides speech, manners, and inclination.