No man truly has joy unless he lives in love.

He who achieves power by violence does not truly become lord or master.

A man has free choice to the extent that he is rational.

For although the will cannot be inwardly moved by any creature, yet it can be moved inwardly by God.

To pretend angels do not exist because they are invisible is to believe we never sleep because we don't see ourselves sleeping.

For those with faith, no evidence is necessary; for those without it, no evidence will suffice.

Because of the diverse conditions of humans, it happens that some acts are virtuous to some people, as appropriate and suitable to them, while the same acts are immoral for others, as inappropriate to them.