The first bird that sang in Eden, built its first nest as perfectly as its last.

But, thought by thought, the first human mind worked out conclusions which the dullest beast or bird reached instantly without reason.

What wonderful co-working of internal and external influences was provided to keep thought in sleepless action; to open, one by one, the myriad petals of the mind! Nature, with all its shifting sceneries, filled every new scope of vision with objects that hourly set thought at play in a new line of reflection.

Then, out of man's physical being came a thousand still small voices daily, whispering, Think! think! The first-born necessities, few and simple, cried, "_Think_! for we want bread, we want drink, we want shelter and raiment against the cold." The finer senses cried continually, "Give! give thought to this, to that." The Eye, the Ear, the Palate and every other organ that could receive and diffuse delight, worked the mental faculties by day and night, up to the last sunset of the antediluvian world; and all the intellectual result of this working Noah took with him into the ark, and gave to his sons to hand over to succeeding ages.
Flowers that Eve stuck in the hair of the infant Abel are just now opening the last casket of their beauty to the favored children of our time.

This, in itself, is a marvellous instance of the law we are noticing.