We do not innovate anything ... How is it that novelties are introduced which were never even thought of by our predecessors?

When in Rome, live in the Roman way.

The Psalms are the voices of the church.

He who reads much and understands much, receives his fill. He who is full, refreshes others.

If you offer fasting with humility and with mercy, your bones, as Isaiah said, shall be fat, and you shall be like a well-watered garden (cf. Isa. 58:11). So, then, your soul shall grow fat and its virtues also by the spiritual richness of fasting, and your fruits shall be multiplied by the fertility of your mind, so that there may be in you the inebriation of soberness, like that cup of which the Prophet says: 'Your cup which inebriates, how excellent it is' (Ps. 23:5 LXX)!

The Lord was Baptized, not to be cleansed Himself, but to cleanse the waters, so that those waters, cleansed by the flesh of Christ which knew no sin, might have the power of Baptism.

Law is twofold -- natural and written. The natural law is in the heart, the written law on tables. All men are under the natural law.