30. The fruits of the Holy Spirit are love, joy, peace, goodness, long-suffering, kindness, faith, gentleness, self control (cf. Gal. 5:22-23). The fruits of the spirit of evil are hatred, worldly despondency, restlessness of soul, a troubled heart, guile, inquisitive-ness, negligence, anger, lack of faith, envy, gluttony, drunkenness, abusiveness, censoriousness, the lust of the eyes (cf. 1 John 2:16), vanity and pretentiousness of soul.
By these fruits you may know the tree (cf. Matt. 12:33), and in this way you will certainly recognize what kind of spirit you have to deal with. An even clearer indication of these things is given by the Lord Himself when He says, ‘A good man out of the good treasury of his heart brings forth good things; and an evil man out of the evil treasury of his heart brings forth evil things’ (Matt. 12:35). For as the tree, so is the fruit.
Philokalia [V4] 115 Nikitas Stithatos On the Inner Nature of Things and on the Purification of the Intellect: One Hundred Texts