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.

We are never real historians, but always near poets, and our emotion is perhaps nothing but an expression of a poetry that was lost.

To live life well is to express life poorly; if one expresses life too well, one is living it no longer.

One must always maintain one's connection to the past and yet ceaselessly pull away from it.

Childhood lasts all through life. It returns to animate broad sections of adult life... Poets will help us to find this living childhood within us, this permanent, durable immobile world.

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.

The blank page gives us the right to dream.