The beginning of thought is in disagreement - not only with others but also with ourselves.

The main effect of a real revolution is perhaps that it sweeps away those who do not know how to wish, and brings to the front men with insatiable appetites for action, power and all that the world has to offer.

One of the marks of a truly vigorous society is the ability to dispense with passion as a midwife of action - the ability to pass directly from thought to action.

Rudeness is the weak man's limitation of strength.

Rudeness is a weak imitation of strength.

Nature is a self-made machine, more perfectly automated than any automated machine. To create something in the image of nature is to create a machine, and it was by learning the inner working of nature that man became a builder of machines.

However much we talk of the inexorable laws governing the life of individuals and of societies, we remain at the bottom convinced that in human affairs everything in more or less fortuitous. We do not even believe in the inevitability of our own death. Hence the difficulty of deciphering the present, of detecting the seeds of things to come as they germinate before our eyes. We are not attuned to seeing the inevitable.