The future is neither ahead nor behind, on one side or another. Nor is it dark or light. It is contained within ourselves; its evil and good are perpetually within us.

The creative element in the mind of man . . . emerges in as mysterious a fashion as those elementary particles which leap into momentary existence in great cyclotrons, only to vanish again like infinitesimal ghosts.

If there is magic on this planet, it is contained in water.

God knows how many things a man misses by becoming smug and assuming that matters will take their own course.

When man becomes greater than nature, nature, which gave him birth, will respond.

From the solitude of the wood, (Man) has passed to the more dreadful solitude of the heart.

Certainly science has moved forward. But when science progresses, it often opens vaster mysteries to our gaze. Moreover, science frequently discovers that it must abandon or modify what it once believed. Sometimes it ends by accepting what it has previously scorned.