Life and hope for the world are to be found only in the deeds of love.

Our use of the phrase 'The Dark Ages' to cover the period from 600 to 1000 marks our undue concentration on Western Europe. [...] From India to Spain, the brilliant civilisation of Islam flourished. What was lost to Christendom at this time was not lost to civilisation, but quite the contrary. [...] To us it seems that West-European civilisation is civilisation, but this is a narrow view.

Into every tidy scheme for arranging the pattern of human life, it is necessary to inject a certain dose of anarchism.

It is because modern education is so seldom inspired by a great hope that it so seldom achieves great results.

I conclude that, while it is true that science cannot decide questions of value, that is because they cannot be intellectually decided at all, and lie outside the realm of truth and falsehood. Whatever knowledge is attainable, must be attained by scientific methods; and what science cannot discover, mankind cannot know.

We need a science to save us from science.

The essence of life is doing things for their own sakes.