Mankind is still embryonic ... [man is] the bud from which something more complicated and more centered than man himself should emerge.

Those who spread their sails in the right way to the winds of the earth will always find themselves born by a current towards the open seas.

My starting point is the fundamental initial fact that each one of us is perforce linked by all the material organic and psychic strands of his being to all that surrounds him. . . . If we look far enough back in the depths of time, the disordered anthill of living beings suddenly, for an informed observer, arranges itself in long files that make their way by various paths towards greater consciousness.

And now, as a germination of planetary dimensions, comes the thinking layer which over its full extent develops and intertwines its fibres, not to confuse and neutralise them but to reinforce them in the living unity of a single tissue.

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 age of nations has passed. Now, unless we wish to perish, we must shake off our old prejudices and build the Earth. The more scientifically I regard the world, the less can I see any possible biological future for it except in the active consciousness of its unity.

Each element of the cosmos is positively woven from all the others...The universe holds together, and only one way of considering it is really possible, that is, to take it as a whole, in one piece.