All the efforts of the human mind cannot exhaust the essence of a single fly.
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.
It is only God who creates. Man merely rearranges.
Devotion is a certain act of the will by which man gives himself promptly to divine service.
The happy man in this life needs friends.
If all the sins of the flesh are worthy of condemnation because by them man allows himself to be dominated by that which he has of the animal nature, much more deserving of condemnation are the sins against nature by which man degrades his own animal nature.