He that gives good advice, builds with one hand; he that gives good counsel and example, builds with both; but he that gives good admonition and bad example, builds with one hand and pulls down with the other.

Knowledge is a rich storehouse for the glory of the Creator and the relief of man's estate.

The first question concerning the Celestial Bodies is whether there be a system, that is whether the world or universe compose together one globe, with a center, or whether the particular globes of earth and stars be scattered dispersedly, each on its own roots, without any system or common center.

Science is but an image of the truth.

There is no comparison between that which is lost by not succeeding and that which is lost by not trying.

I believe in deeply ordered chaos

Do not wonder if the common people speak more truly than those above them: they speak more safely.