Man should not consider his material possession his own, but as common to all, so as to share them without hesitation when others are in need.

A man does not always choose what his guardian angel intends.

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.

He suddenly announced that he could not write any more since "All that I have written seems like straw to me."

Wonder was the motive that led people to philosophy ... wonder is a kind of desire in knowledge. It is the cause of delight because it carries with it the hope of discovery.

Bestow upon me, O Lord my God, understanding to know thee, diligence to seek thee, wisdom to find thee, and a faithfulness that may finally embrace thee.

It is altogether unlawful to kill oneself... Wherefore suicide is contrary to the inclination of nature, and to charity whereby every man should love himself... Life is God's gift to man, and is subject to His power, Who kills and makes to live. Hence whoever takes his own life, sins against God... for it belongs to God alone to pronounce sentence of death and life.