Scurrility has no object in view but incivility; if it is uttered from feelings of petulance, it is mere abuse; if it is spoken in a joking manner, it may be considered raillery.
The following passage is one of those cited by Copernicus himself in his preface to De Revolutionibus: "The Syracusan Hicetas, as Theophrastus asserts, holds the view that the heaven, sun, moon, stars, and in short all of the things on high are stationary, and that nothing in the world is in motion except the earth, which by revolving and twisting round its axis with extreme velocity produces all the same results as would be produced if the earth were stationary and the heaven in motion. . . ."
Read at every wait; read at all hours; read within leisure; read in times of labor; read as one goes in; read as one goest out. The task of the educated mind is simply put: read to lead.
That which leads us to the performance of duty by offering pleasure as its reward, is not virtue, but a deceptive copy and imitation of virtue.
[Lat., Nam quae voluptate, quasi mercede aliqua, ad officium impellitur, ea non est virtus sed fallax imitatio simulatioque virtutis.]