Great is the issue at stake, greater than appears, whether a man is to be good or bad. And what will any one be profited if, under the influence of money or power, he neglect justice and virtue?

The science [geometry] is pursued for the sake of the knowledge of what eternally exists, and not of what comes for a moment into existence, and then perishes.

The makers of fortunes have a second love of money as a creation of their own, resembling the affection of authors for their own poems, or of parents for their children, besides that natural love of it for the sake of use and profit.

Welcome out of the cave, my friend. It's a bit colder out here, but the stars are just beautiful.

Nothing in human affairs is worth any great anxiety.

The knowledge of which geometry aims is the knowledge of the eternal.

The mortal nature is seeking as far as is possible to be everlasting and immortal: and this is only to be attained by generation, because the new is always left in the place of the old.