It is that of increasing knowledge of empirical fact intimately combined with changing interpretations of this body of fact - hence changing general statements about it - and not least a changing a structure of the theoretical system.

It is probably safe to say that all the changes of factual knowledge which have led to the relativity theory resulting in a very great theoretical development are completely trivial from any point of view except their relevance to the structure of a theoretical system.

The theoretical understanding of the world which is the aim of philosophy is not a matter of great practical importance to animals or to savages or even to most civilised men.

And gradually they're beginning to recognize the fact that there's nothing more secure than a democratic accountable and participatory form of government. But it's sunk in only theoretically it has not yet sunk in completely in practical terms.

Faith means belief in something concerning which doubt is theoretically possible.

There is the expression of selfishness and there is the expression of selflessness - but economists or theoreticians never touched that part. They said: 'Go and become a philanthropist.' I said 'No I can do that in the business world create a different kind of business - a business based on selflessness.'

Now I'm not saying I'm fashionable but there are sociological interests that matter to me things that are theoretical political intellectual and also concerned with vanity and beauty that we all think about but that I try to mix up and translate into fashion.

If philosophy is practice a demand to know the manner in which its history is to be studied is entailed: a theoretical attitude toward it becomes real only in the living appropriation of its contents from the texts.