Imagination is a tree. It has the integrative virtues of a tree. It is root and boughs. It lives between earth and sky. It lives in the earth and the wind. The imagined tree imperceptibly becomes a cosmological tree, the tree which epitomises a universe, which makes a universe.
Gaston BachelardAny 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.
Gaston BachelardIn scientific thought, the concept functions all the better for being cut off from all background images. In its full exercise, the scientific concept is free from all the delays of its genetic evolution, an evolution which is consequently explained by simple psychology. The virility of knowledge increases with each conquest of the constructive abstraction.
Gaston Bachelard