The stars are laboratories in which the evolution of matter proceeds in the direction of large molecules.

Is evolution a theory, a system, or a hypothesis? It is much more it is a general postulate to which all theories, all hypotheses, all systems must henceforward bow and which they must satisfy in order to be thinkable and true. Evolution is a light which illuminates all facts, a trajectory which all lines of thought must follow this is what evolution is.

The phrase 'Sense of the Earth' should be understood to mean the passionate concern for our common destiny which draws the thinking part of life ever further onward. The only truly natural and real human unity is the spirit of the Earth. . . .The sense of Earth is the irresistable pressure which will come at the right moment to unite them (humankind) in a common passion.The Age of Nations is past. The task before us now, if we would not perish, is to build the Earth.

Remain true to yourself, but move ever upward toward greater consciousness and greater love! At the summit you will find yourselves united with all those who, from every direction, have made the same ascent. For everything that rises must converge.

Truth has to appear only once, in one single mind, for it to be impossible for anything ever to prevent it from spreading universally and setting everything ablaze.

The future is more beautiful than all the pasts.

The zest for life, which is the source of all passion and all insight, even divine, does not come to us from ourselves.... It is God who has to give us the impulse of wanting him.