Common Sense

I mean, you could claim that anything's real if the only basis for believing in it is that nobody's proved it doesn't exist!

Good sense about trivialities is better than nonsense about things that matter.

Finally we shall place the Sun himself at the center of the Universe. All this is suggested by the systematic procession of events and the harmony of the whole Universe, if only we face the facts, as they say, “with both eyes open.”