Philosophy is the history of philosophy.

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

The real is the rational and the rational is the real.

Genuine tragedies in the world are not conflicts between right and wrong. They are conflicts between two rights.

Consequently, the sensuous aspect of art is related only to the two theoretical sensesof sight and hearing, while smell, taste, and touch remain excluded.

Mark this well, you proud men of action! you are, after all, nothing but unconscious instruments of the men of thought.

Science and knowledge, especially that of philosophy, came from the Arabs into the West.