We often say that the earth is a sphere, but to be precise, the term sphere refers only to the surface. The correct mathematical term for the solid earth is a ball. Leonard Susskind
They are made for life, not for thought. Yes, and he who thinks, what's more, he who makes thought his business, he may go far in it, but he has bartered the solid earth for the water all the same, and one day he will drown. Hermann Hesse
Throw away the Old Testament! What part of it will you throw away? That which I do not understand? Take down then yonder blood-stained cross; for there is a love there "which passeth knowledge," and a Divine hatred of sin which shook the solid earth. Abbott Eliot Kittredge