Nothing great in the world has ever been accomplished without passion.

The history of the world is none other than the progress of the , consciousness of freedom.

An idea is always a generalization, and generalization is a property of thinking. To generalize means to think.

Genuine tragedy is a case not of right against wrong but of right against right - two equally justified ethical principles embodied in people of unchangeable will.

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.

Truth in philosophy means that concept and external reality correspond.

The ignorant man is not free, because what confronts him is an alien world, something outside him and in the offing, on which he depends, without his having made this foreign world for himself and therefore without being at home in it by himself as in something his own. The impulse of curiosity, the pressure for knowledge, from the lowest level up to the highest rung of philosophical insight arises only from the struggle to cancel this situation of unfreedom and to make the world one's own in one's ideas and thought.