Are physical forces alone at work there, or has evolution begotten something more complex, something not akin to what we know on Earth as life? It is in this that lies the peculiar interest of Mars.
Percival LowellThere are celestial sights more dazzling, spectacles that inspire more awe, but to the thoughtful observer who is privileged to see them well, there is nothing in the sky so profoundly impressive as the canals of Mars. Fine lines and little gossamer filaments only, cobwebbing the face of the Martian disk, but threads to draw one's mind after them across the millions of miles of intervening void.
Percival LowellThat Mars is inhabited by beings of some sort or other we may consider as certain as it is uncertain what these beings may be.
Percival LowellThe whole object of science is to synthesize, and so simplify; and did we but know the uttermost of a subject we could make it singularly clear.
Percival Lowell