Charity brings to life again those who are spiritually dead.

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

The test of the artist does not lie in the will with which he goes to work, but in the excellence of the work he produces.

Love takes up where knowledge leaves off.

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.

If... the motion of the earth were circular, it would be violent and contrary to nature, and could not be eternal, since ... nothing violent is eternal .... It follows, therefore, that the earth is not moved with a circular motion.

The truth of our faith becomes a matter of ridicule among the infidels if any Catholic, not gifted with the necessary scientific learning, presents as dogma what scientific scrutiny shows to be false.