Vicious habits are so great a stain to human nature, and so odious in themselves, that every person actuated by right reason would avoid them, though he were sure they would be always concealed both from God and man, and had no future punishment entailed upon them.
Not to know what happened before you were born is to be a child forever. For what is the time of a man, except it be interwoven with that memory of ancient things of a superior age?
Just what is the civil law? What neither influence can affect, nor power break, nor money corrupt: were it to be suppressed or even merely ignored or inadequately observed, no one would feel safe about anything, whether his own possessions, the inheritance he expects from his father, or the bequests he makes to his children.
A thankful heart is not only the greatest virtue, but the parent of all the other virtues.
[Lat., Gratus animus est una virtus non solum maxima, sed etiam mater virtutum onmium reliquarum.]
Mathematics is an obscure field, an abstruse science, complicated and exact; yet so many have attained perfection in it that we might conclude almost anyone who seriously applied himself would achieve a measure of success.
A sensual and intemperate youth hands over a worn-out body to old age.
[Lat., Libidinosa etenim et intemperans adolescentiam effoetum corpus tradit senectuti.]