Any work of science, no matter what its point of departure, cannot become fully convincing until it crosses the boundary between the theoretical and the experimental: Experimentation must give way to argument, and argument must have recourse to experimentation.

Daydream transports the dreamer outside the immediate world to a world that bears the mark of infinity.

Nobody knows that in reading we are re-living our temptations to be a poet. All readers who have a certain passion for reading, nurture and repress, through reading, the desire to become a writer.

The psychology of the alchemist is that of reveries trying to constitute themselves in experiments on the exterior world. A double vocabulary must be established between reverie and experiment. The exaltation of the names of substances is the preamble to experiments on the "exalted" substances.

Happy is the man who knows or even the man who remembers those silent vigils where silence itself was the sign of the communion of souls!

The word chrysalis alone is an unmistakable indication that here two dreams are joined together, dreams that be-speak both the repose and flight of being, evening's crystallization and wings that open to the light.

Any comparison diminishes the expressive qualities of the terms of the comparison.