When liberty is mentioned, we must always be careful to observe whether it is not really the assertion of private interests which is thereby designated.

No man is a hero to his valet de chamber

The courage of the truth is the first condition of philosophic study.

The first glance at History convinces us that the actions of men proceed from their needs, their passions, their characters and talents; and impresses us with the belief that such needs, passions and interests are the sole spring of actions.

History is not the soil of happiness. The periods of happiness are blank pages in it.

Before the end of Time will be the end of History. Before the end of History will be the end of Art.

In duty the individual acquires his substantive freedom