To like many people spontaneously and without effort is perhaps the greatest of all sources of personal happiness.

The desire to understand the world and the desire to reform it are the two great engines of progress, without which human society would stand still or retrogress.

Those who forget good and evil and seek only to know the facts are more likely to achieve good than those who view the world through the distorting medium of their own desires.

Orthodoxy is the grave of intelligence, no matter what orthodoxy it may be.

Those who advocate common usage in philosophy sometimes speak in a manner that suggests the mystique of the 'common man.'

Continuity of purpose is one of the most essential ingredients of happiness in the long run, and for most men that comes chiefly through their work.

With subjectivity in philosophy, anarchism in politics goes hand in hand. Already during Luther's lifetime, unwelcome and unacknowledged disciples had developed the doctrine of Anabaptism, which for a time dominated the city of Munster. The Anabaptists repudiated all law since they held that good men will be guided at every moment by the Holy Spirit, who can not be bound by formulas. From this premise they arrive at communism and sexual promiscuity; they were therefore exterminated after a heroic resistance.