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.
Percival LowellNow 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 the only minds in it all.
Percival LowellImagination is as vital to any advance in science as learning and precision are essential for starting points.
Percival LowellIf astronomy teaches anything, it teaches that man is but a detail in the evolution of the universe, and the resemblant though diverse details are inevitably to be expected in the hosts of orbs around him. He learns that, though he will probably never find his double anywhere, he is destined to discover any number of cousins scattered through space.
Percival Lowell