To go upstairs in the word house is to withdraw step by step; while to go down to the cellar is to dream.

The subconscious is ceaselessly murmuring, and it is by listening to these murmurs that one hears its truth.

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.

Childhood knows unhappiness through men. In solitude, it can relax its aches. When the human world leaves him in peace, the child feels like the son of the cosmos.

Actually, however, life begins less by reaching upward, than by turning upon itself. But what a marvelously insidious, subtle image of life a coiling vital principle would be! And how many dreams the leftward oriented shell, or one that did not conform to the rotation of its species, would inspire!

What is the source of our first suffering? It lies in the fact that we hesitated to speak... It was born in the moment when we accumulated silent things within us.

The poetic image is a sudden salience on the surface of the psyche