Yet his powers of observation may be marvellously developed.

The North American Indian tracks his foe through the forest by signs unrecognizable to a white man, and he reasons most astutely upon them, and still that very man turns out to be a mere child when put before problems a trifle out of his beaten path.

And all because his forefathers had not the power to imagine something beyond what they actually saw.

The very essence of the force of imagination lies in its ability to change a man's habitat for him.

Without it, man would forever have remained, not a mollusk, to be sure, but an animal simply.