Distance is the soul of beauty.

A test of what is real is that it is hard and rough. Joys are found in it, not pleasure. What is pleasant belongs to dreams.

I can, therefore I am.

The great error of nearly all studies of war... has been to consider war as an episode in foreign policies, when it is an act of interior politics.

What a country calls its vital economic interests are not the things which enable its citizens to live, but the things which enable it to make war. Petrol is more likely than wheat to be a cause of international conflict.

It is a fault to wish to be understood before we have made ourselves clear to ourselves.

When we hit a nail with a hammer, the whole of the shock received by the large head of the nail passes into the point without any of it being lost, although it is only a point. If the hammer and the head of the nail were infinitely big it would be just the same. The point of the nail would transmit this infinite shock at the point to which it was applied. Extreme affliction, which means physical pain, distress of soul and social degradation, all at the same time, constitutes the nail. The point is applied at the very center of the soul, whose head is all necessity, spreading throughout space and time.