St. John of Kronstadt-A Changing Heart

"The heart can change several times in one moment - to good or evil, to faith or unbelief, to simplicity or cunning, to love or hatred, to benevolence or envy, to generosity or avarice, to chastity or fornication. O, what inconstancy! O, how many dangers! O,  how sober and watchful we must be!"

St. John of Kronstdt