That Mars is inhabited by beings of some sort or other we may consider as certain as it is uncertain what these beings may be..

The 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..

Speculation has been singularly fruitful as to what these markings on our next to nearest neighbor in space may mean. Each astronomer holds a differe….

There are celestial sights more dazzling, spectacles that inspire more awe, but to the thoughtful observer who is privileged to see them well, there ….

Now when we think that each of these stars is probably the centre of a solar system grander than our own, we cannot seriously take ourselves to be th….

Irrigation, unscientifically conducted, would not give us such truly wonderful mathematical fitness [as we observe in the Martian canals]. . . . A mi….

Imagination is as vital to any advance in science as learning and precision are essential for starting points..

Formulae are the anaesthetics of thought, not its stimulants and to make any one think is far better worth while than cramming him with ill-considere….

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….

War is a survival among us from savage times and affects now chiefly the boyish and unthinking element of the nation..

Imagination is as vital to any advance in science as learning and precision are essential for starting points. Let me warn you to beware of two oppos….

Ever since celestial mechanics in the skillful hands of Leverrier and Adams led to the world-amazed discovery of Neptune, a belief has existed begott….

Bright points in the sky or a blow on the head will equally cause one to see stars..

If astronomy teaches anything, it teaches that man is but a detail in the evolution of the universe, and the resemblant though diverse details are in….