Good and evil are essential differences of the act of the will. For good and evil pertain essentially to the will; just as truth and falsehood pertain to the reason, the act of which is distinguished essentially by the difference of truth and falsehood (according as we say that an opinion is true or false.) Consequently, good and evil volition are acts differing in species.

Law has the power to compel: indeed, the ability to enforce is a condition of the ability to command.

The greatest kindness one can render to any man consists in leading him from error to truth.

If a man deliberately abstains from wine to such an extent that he does serious harm to his nature, he will not be free from blame.

The Angel's bread is made the Bread of man today.

To disparage the dictate of reason is equivalent to contemning the command of God.

Arrive at knowledge over small streamlets, and do not plunge immediately into the ocean, since progress must go from the easier to the more difficult.