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All this, the positive and physical essence of mechanics, which makes its chief and highest interest for a student of nature, is in existing treatises completely buried and concealed beneath a mass of technical considerations.
--
Preface to the first edition, , p. vii

 

Ernst Mach

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A man who possesses common sense and the use of reason must not expect to learn from treatises or lectures on textual criticism anything that he could not, with leisure and industry, find out for himself. What the lectures and treatises can do for him is to save him time and trouble by presenting to him immediately considerations which would in any case occur to him sooner or later.

 

A. E. Housman

 

What do we mean by saying that existence precedes essence? We mean that man first of all exists, encounters himself, surges up in the world – and defines himself afterwards. If man as the existentialist sees him is not definable, it is because to begin with he is nothing. He will not be anything until later, and then he will be what he makes of himself. Thus, there is no human nature, because there is no God to have a conception of it. Man simply is. Not that he is simply what he conceives himself to be, but he is what he wills, and as he conceives himself after already existing – as he wills to be after that leap towards existence. Man is nothing else but that which he makes of himself. That is the first principle of existentialism.

 

Jean-Paul Sartre

 

If we consider further the manifold relations of this mathematical theory to civil uses and the technical arts, we shall recognize completely the extent of its applications. It is evident that it includes an entire series of distinct phenomena, and that the study of it cannot be omitted without losing a notable part of the science of nature.
The principles of the theory are derived, as are those of rational mechanics, from a very small number of primary facts, the causes of which are not considered by geometers, but which they admit as the results of common observations confirmed by all experiment.

 

Joseph Fourier

 

It must be emphasized that an intensive study of national socialistic "prehistory" reveals a curious lack of original thought in Hitler's concepts; Hitler's strength consists solely in the clever use of already existing trends, ideas, and situations. It lies in the very nature of mass leaders that they cannot be "original"; the mass leader is necessarily a virtuoso of commonplaces which he may or may not repeat in the guise of a "new discovery." The modern dictator is not out to contradict but to confirm already existing views (and prejudices).

 

Adolf Hitler

 

The point about digitization, just to explain what I mean by that, is the way that information is no longer a physical commodity. It doesn't have a mass like it used to. So it used to be that if you wanted to leak a bunch of documents, you physically had to carry away these huge boxes of documents and then you had to physically photocopy them somehow. And they had this physical mass, and it was through that mass that they could be controlled by people in power. When information is digitized, it loses that mass for the most part. It becomes almost ephemeral, it's like an idea; it's like a thought. And it spreads and it can be shared almost instantaneously. So you can take that, and then you combine it with the internet, which is this web in which everybody is talking to each other and sharing information. And you've got the makings of what I think is a digital revolution, which nobody quite knows how to handle it, what to do with it.

 

Heather Brooke