call for business

"All along I have been identifying the adventurous spirit with humanism, liberalism, rationalism, the scientific spirit, the ideals of freedom, individualism, and the "open society." Since these have constituted the distinctive faith of our secular civilization, I appear to be calling for business as usual, at the same old stand --- the kind of business that has brought on the present crisis. I should therefore repeat that the adventure in freedom is precarious. Yet I deny that this faith is the main source of our folly and evil. In the world of affairs the obvious menace is inveterate self-interest, individual and national, upon which all faiths have founded. In the world of thought the chief menaces are the various forms of authoritarianism and irrationalism." (Herbert Muller)

I cannot understand what the author means by the blue sentence. Please, explain it!

Thank you.

Cadzao