Someone who has actually tasted truth is not contentious for truth. Someone who is considered by people to be zealous for truth has not yet learned what truth is really like; once he has truly learned it, he will cease from zealousness on its behalf.
Isaac of NinevehThe Commandments of God are higher than all the treasures of the earth. Whoever has acquired them has received God within himself.
Isaac of NinevehLet there always be a preponderance of mercy with you, even though you don't feel such mercy in yourself, as God has for the world ... A cruel and merciless heart is never purified. A merciful man is the doctor of his own soul, because as it were a by a strong wind from is heart he drives out the darkness of the passions.
Isaac of Nineveh