Thomas Aquinas quotes and sayings

Moral science is better occupied when treating of friendship than of justice.
Thomas Aquinas quotes
- It is possible to demonstrate God's existence, although not a priori, yet a posteriori from some work of His more surely known to us.
- Not everything that is more difficult is more meritorious.
- God should not be called an individual substance, since the principal of individuation is matter.
- In order for a war to be just, three things are necessary. First, the authority of the sovereign. Secondly, a just cause. Thirdly, a rightful intention.
- If forgers and malefactors are put to death by the secular power, there is much more reason for excommunicating and even putting to death one convicted of heresy.
- All that is true, by whomsoever it has been said has its origin in the Spirit.
- There is nothing on this earth more to be prized than true friendship.
- To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.
- Every judgement of conscience, be it right or wrong, be it about things evil in themselves or morally indifferent, is obligatory, in such wise that he who acts against his conscience always sins.
- If the highest aim of a captain were to preserve his ship, he would keep it in port forever.