Species do not grow more perfect: the weaker dominate the strong, again and again-the reason being that they are the great majority, and they are also cleverer. Darwin forgot the mind (- that is English!): the weak possess more mind. ... To acquire mind, one must need mind-one loses it when one no longer needs it.

Strong minds discuss ideas, average minds discuss events, weak minds discuss people.

The best cure for the body is a quiet mind.

The sole "property" of matter with whose recognition philosophical materialism is bound up is the property of being an objective reality, of existing outside the mind.

Iron rusts from disuse; water loses its purity from stagnation... even so does inaction sap the vigor of the mind.

Those who cannot change their minds cannot change anything.