The greatest horrors in the history of mankind are not due to the ambition of the Napoleons or the vengeance of the Agamemnons, but to the doctrinaire philosophers. The theories of the sentimentalist Rousseau inspired the integrity of the passionless Robespierre. The cold-blooded calculations of Karl Marx led to the judicial and business-like operations of the Cheka.

I will interpret every phenomenon as a particular dealing of God with my soul

Falsehood is invariably the child of fear in one form or another.

This complaining rambling rubbish is the substitute which has taken the place of love.

I have never grown out of the infantile belief that the universe was made for me to suck.

Science is always discovering odd scraps of magical wisdom and making a tremendous fuss about its cleverness.

The conscience of the world is so guilty that it always assumes that people who investigate heresies must be heretics; just as if a doctor who studies leprosy must be a leper. Indeed, it is only recently that science has been allowed to study anything without reproach.