Saint Hilary of Poitiers

For Christ teaches that only those who become again as it were little children, and by the simplicity of that age cut off the inordinate affections of vice, can enter the kingdom of heaven. These follow and obey their father, love their mother; are strangers to covetousness, ill-will, hatred, arrogance, and lying, and are inclined easily to believe what they hear. This disposition of affections opens the way to heaven. We must therefore return to the simplicity of little children, in which we shall bear some resemblance to our Lord's humility.

-- Saint Hilary of Poitiers