St. Gregory Palamas on the Holy Spirit

The Hetoimasia (Preparation) of the Throne, with the depiction of the Holy Spirit (source)

  

He is not just everywhere, but also above all, not just in every age and time, but before them all. And, according to the promise, the Holy Spirit will not just be with us until the end of the age, but rather will stay with those who are worthy in the age to come, making them immortal and filling their bodies as well with eternal glory, as the Lord indicated by telling His disciples, "I will pray the Father, and he shall give you another Comforter, that he may abide with you forever" (John 14:16).

-St. Gregory Palamas,
"Homily Twenty-Four: On How the Holy Spirit was Manifested and Shared Out at Pentecost"
(source)
  

Through the prayers of our Holy Fathers, Lord Jesus Christ our God, have mercy on us and save us! Amen!

St. Luke the Surgeon on Holy Water

St. Luke the Surgeon, Archbishop of Simferopol (source)

  
"Drink Holy Water, the more often, the better. It is the best and most effective medicine. I'm not saying this as a priest, I'm saying it as a doctor, from my medical experience."
-St. Luke the Surgeon, Archbishop of Simferopol
  
(source)
  

Through the prayers of our Holy Fathers, Lord Jesus Christ our God, have mercy on us and save us! Amen!