Joseph Priestley

The greatest happiness is to be found in the service of God and humanity.

The pursuit of knowledge is an endless journey, but every step is a reward.

The beauty of holiness is the most attractive of all beauties.

The more accurate and extensive our knowledge of the properties of natural substances, the more perfect will be our chemical theories, and the more useful our applications of them.

The English hierarchy, if there be any truth in the proverb, 'No bishop, no king,' is so essential to the English monarchy, that it cannot stand without it.

The state of things in this world is not fixed and unalterable, but is in a continual progress of improvement.

The doctrine of the Trinity is a corruption of Christianity, and a departure from the simplicity of the gospel.

All matter is essentially the same, and differs only in the arrangement and motion of its constituent particles.

The proper object of government is the happiness of the governed.

The only method of coming at truth, is by the free discussion of every opinion.

The whole of the human race will, in the end, become one great and happy society.

The more we know of the works of God, the more we shall admire his wisdom and power.

The business of philosophy is to discover the laws of nature, and to apply them to the improvement of human life.

The only true religion is that which makes men good.

The present state of things is not the best possible, but is capable of indefinite improvement.

The doctrine of original sin is contrary to the goodness of God and the dictates of reason.

The true end of education is to make men wise and good.

The proper object of faith is not what is incomprehensible, but what is credible.

The more we examine the works of nature, the more we shall be convinced of the existence and perfections of God.

The greatest enemy of truth is not error, but prejudice.