Seraphim of Sarov quotes:

... only the good deed done for Christ's sake brings us the fruits of the Holy Spirit. All that is not done for Christ's sake, even though it be good, brings neither reward in the future life nor the grace of God in this life. That is why our Lord Jesus Christ said: 'He who gathers not with Me scatters' (Lk. 11:23).

You cannot be too gentle, too kind. Shun even to appear harsh in your treatment of each other. Joy, radiant joy, streams from the face of one who gives and kindles joy in the heart of one who receives.

That I am a monk and you are a layman is of no importance ... rather that we are both in the light of the Holy Spirit ... Acquire peace, and thousands around you will be saved.

Those who have truly decided to serve the Lord God should practice the remembrance of God and uninterrupted prayer to Jesus Christ, mentally saying: Lord Jesus Christ, Son of God, have mercy on me, a sinner.

Every success in anything we should refer to the Lord and with the Prophet say: 'Not to us, O Lord, not to us, but to Your name give glory' (Ps. 113:9).

The reading of the word of God should be performed in solitude, in order that the whole mind of the reader might be plunged into the truths of the Holy Scripture, and that from this he might receive warmth, which in solitude produces tears; from these a man is wholly warmed and is filled with spiritual gifts, which rejoice the mind and heart more than any word.

The true aim of our Christian life consists in the acquisition of the Holy Spirit of God. As for fasts, and vigils, and prayer, and almsgiving, and every good deed done for Christ's sake, they are only means of acquiring the Holy Spirit of God.

Can one, seeing the sun with one's sensuous eyes, not rejoice? But how much more joyful it is when the mind sees with its inner eye the Sun of justice, Christ! Then in truth one rejoices with angelic joy; of this the Apostle too said: 'Our conversation is in heaven' (Phil. 3:20).

What are you to us, you who are cut off from God, a fugitive for Heaven, and a slave of evil? You dare not do anything to us: Christ, the Son of God, has dominion over us and over all. Leave us, you thing of bane. We are made steadfast by the uprightness of His Cross. Serpent, we trample on your head.

...it is up to us to add labors to labors in order to go from strength to strength (Ps. 83:7), and to come to the measure of the stature of the fullness of Christ (Eph. 4:13)?

Acquire a peaceful spirit, and thousands around you will be saved.

Establish yourself in God and then you will be helpful to others.

Maintain a spirit of peace and you will save a thousand souls.

The true aim of our Christian life consists in the acquisition of the Holy Spirit of God.

The body is a slave, the soul a sovereign, and therefore it is due to Divine mercy when the body is worn out by illness: for thereby the passions are weakened, and a man comes to himself; indeed, bodily illness itself is sometimes caused by the passions.

Whatever you do, do it gently and unhurriedly, because virtue is not a pear to be eaten in one bite.

... the people who, in spite of the bonds of sin which fetter them and hinder them (by constraint and by inciting them to new sins), come to Him, our Savior, with perfect repentance for tormenting Him, who despise all the strength of the fetters of sin and force themselves to break their bonds ? such people at last actually appear before the face of God made whiter than snow by His grace. 'Come, says the Lord: Though your sins be as scarlet, I will make them whiter than snow' (Isa. 1:18).

When a man receives something Divine, in his heart he rejoices; but when he receives something diabolic, he is disturbed. The Christian heart, when it has received something Divine, does not demand anything else in order to convince it that this is precisely from the Lord; but by that very effect it is convinced that this is heavenly, for it senses within itself spiritual fruits: love, joy, peace, and the rest (cf. Gal. 5:22).

The human spirit lies open to God alone, for it is a fathomless depth.

Bear sorrows for the sake of the Heavenly Kingdom. Without sorrows there is no salvation. On the other hand, the Kingdom of God awaits those who have patiently endured. And all the glory of the world is nothing in comparison. My joy! I implore you to acquire a peaceful spirit.

God is a fire that warms and kindles the heart and inward parts. Hence, if we feel in our hearts the cold which comes from the devil - for the devil is cold - let us call on the Lord. He will come to warm our hearts with perfect love, not only for Him but also for our neighbor, and the cold of him who hates the good will flee before the heat of His countenance.

If a man has no worries about himself at all for the sake of love toward God and the working of good deeds, knowing that God is taking care of him, this is a true and wise hope. But if a man takes care of his own business and turns to God in prayer only when misfortunes come upon him which are beyond his power, and then he begins to hope in God, such a hope is vain and false. A true hope seeks only the Kingdom of God... the heart can have no peace until it obtains such a hope. This hope pacifies the heart and produces joy within it.

In spite of our sinfulness, in spite of the darkness surrounding our souls, the Grace of the Holy Spirit, conferred by baptism in the name of the Father and the Son and the Holy Spirit, still shines in our hearts with the inextinguishable light of Christ ... and when the sinner turns to the way of repentance the light smooths away every trace of the sins committed, clothing the former sinner in the garments of incorruption, spun of the Grace of the Holy Spirit. It is this acquisition of the Holy Spirit about which I have been speaking.

Oh, if you only knew what joy, what sweetness awaits a righteous soul in Heaven! You would decide in this mortal life to bear any sorrows, persecutions and slander with gratitude. If this very cell of ours was filled with worms, and these worms were to eat our flesh for our entire life on earth, we should agree to it with total desire, in order not to lose, by any chance, that heavenly joy which God has prepared for those who love Him.

Prayer, fasting, vigils, and all other Christian practices, however good they may be in themselves, certainly do not constitute the aim of our Christian life: they are but the indispensable means of attaining that aim. For the true aim of the Christian life is the acquisition of the Holy Spirit of God. As for fasts, vigils, prayer and almsgiving, and other good works done in the name of Christ, they are only the means of acquiring the Holy Spirit of God. Note well that it is only good works done in the name of Christ that bring us the fruits of the Spirit.

The Lord sometimes allows people who are devoted to Him to fall into such dreadful vices; and this is in order to prevent them from falling into a still greater sin-pride. Your temptation will pass and you will spend the remaining days of your life in humility. Only do not forget your sin.