What you receive from others is a testimony to their virtue; but all that you do for others is the sign and clear indication of your own.

It is proof of a base and low mind for one to wish to think with the masses or majority, merely because the majority is the majority. Truth does not change because it is, or is not, believed by a majority of the people.

There is no absolute up or down, as Aristotle taught; no absolute position in space; but the position of a body is relative to that of other bodies. Everywhere there is incessant relative change in position throughout the universe, and the observer is always at the center of things.

There is one basic cause of all effects.

The soul is not the body and it may be in one body or in another, and pass from body to body.

Make then your forecasts, my lords Astrologers, with your slavish physicians, by means of those astrolabes with which you seek to discern the fantastic nine moving spheres; in these you finally imprison your own minds, so that you appear to me but as parrots in a cage, while I watch you dancing up and down, turning and hopping within those circles.

In this infinite space is placed our universe (whether by chance, by necessity, or by providence I do not now consider).