To you, as to the majority of thinkers, the relations between things, the reality of which is proved to you by your sensations and which you possess the faculty to discover, do not seem Material.

The Natural universe of things and beings ends, in man, with the Spiritual universe of similarities or differences which he perceives among the innumerable forms of Nature,--relations so multiplied as to seem infinite; for if, up to the present time, no one has been able to enumerate the separate terrestrial creations, who can reckon their correlations?
Is not the fraction which you know, in relation to their totality, what a single number is to infinity?
Here, then, you fall into a perception of the infinite which undoubtedly obliges you to conceive of a purely Spiritual world.
"Thus man himself offers sufficient proof of the two orders,--Matter and Spirit.

In him culminates a visible finite universe; in him begins a universe invisible and infinite,--two worlds unknown to each other.

Have the pebbles of the fiord a perception of their combined being?
have they a consciousness of the colors they present to the eye of man?
do they hear the music of the waves that lap them?
Let us therefore spring over and not attempt to sound the abysmal depths presented to our minds in the union of a Material universe and a Spiritual universe,--a creation visible, ponderable, tangible, terminating in a creation invisible, imponderable, intangible; completely dissimilar, separated by the void, yet united by indisputable bonds and meeting in a being who derives equally from the one and from the other! Let us mingle in one world these two worlds, absolutely irreconcilable to your philosophies, but conjoined by fact.

However abstract man may suppose the relation which binds two things together, the line of junction is perceptible.