The Forms and Metamorphoses of Mind
It gives liberty and breadth to thought, to learn to judge our own epoch from the point of view of universal history, history from the point of view of geological periods, geology from the point of view of astronomy. When the duration of a man's life or of a people's life appears to us as microscopic as that of a fly and inversely, the life of a gnat as infinite as that of a celestial body, with all its dust of nations, we feel ourselves at once very small and very great, and we are able, as it were, to survey from the height of the spheres our own existence, and the little whirlwinds which agitate our little Europe. At bottom there is but one subject of study: the forms and metamorphoses of mind. All other subjects may be reduced to that; all other studies bring us back to this study.
Henri Amiel, in 'Intime Journal'