Tertullian

Faith is to believe what you do not see; the reward of this faith
is to see what you believe.
St. Augustine

I do not fear Satan half so much as I fear those who fear him.
St. Theresa Of Avila

For reason is a property of God's, since there is nothing which God, the creator
of all things, has not foreseen, arranged and determined by reason; moreover, there is nothing He does not wish to be investigated and understood by reason.
Tertullian

The power of choosing good and evil is within the reach of all.
Origen