Also from here:
catholic.com/tracts/filioque .
The quotations below show that the early Church Fathers, both Latin and Greek, recognized the same thing, saying that the Spirit proceeds “from the Father and the Son” or “from the Father through the Son.”
John Damascene
“Likewise we believe also in one Holy Spirit, the Lord and giver of life . . . God existing and addressed along with Father and Son; uncreated, full, creative, all-ruling, all-effecting, all-powerful, of infinite power, Lord of all creation and not under any lord; deifying, not deified; filling, not filled; sharing in, not shared in; sanctifying, not sanctified; the intercessor, receiving the supplications of all; in all things like to the Father and Son; proceeding from the Father and communicated through the Son” (Exposition of the Orthodox Faith 8 [A.D. 712]).
“And the Holy Spirit is the power of the Father revealing the hidden mysteries of his divinity, proceeding from the Father through the Son in a manner known to himself, but different from that of generation” (ibid., 12).
“I say that God is always Father since he has always his Word [the Son] coming from himself and, through his Word, the Spirit issuing from him” (Dialogue Against the Manicheans 5 [A.D. 728]).
Cyril of Alexandria
“Since the Holy Spirit when he is in us effects our being conformed to God, and he actually proceeds from the Father and Son, it is abundantly clear that he is of the divine essence, in it in essence and proceeding from it” (Treasury of the Holy Trinity, thesis 34 [A.D. 424]).
“[T]he Holy Spirit flows from the Father in the Son” (ibid.).
“Just as the Son says ‘All that the Father has is mine’ [John 16:15], so shall we find that through the Son it is all also in the Spirit” (Letters 3:4:33 [A.D. 433]).
Basil The Great
“Through the Son, who is one, he [the Holy Spirit] is joined to the Father, one who is one, and by himself completes the Blessed Trinity” (The Holy Spirit 18:45 [A.D. 375]).
“[T]he goodness of [the divine] nature, the holiness of [that] nature, and the royal dignity reach from the Father through the only-begotten [Son] to the Holy Spirit. Since we confess the persons in this manner, there is no infringing upon the holy dogma of the monarchy” (ibid., 18:47).
Tertullian
“I believe that the Spirit proceeds not otherwise than from the Father through the Son” (Against Praxeas 4:1 [A.D. 216]).
Origen
“We believe, however, that there are three persons: the Father and the Son and the Holy Spirit; and we believe none to be unbegotten except the Father. We admit, as more pious and true, that all things were produced through the Word, and that the Holy Spirit is the most excellent and the first in order of all that was produced by the Father through Christ” (Commentaries on John 2:6 [A.D. 229]).