If we love our enemies, there will be no place in our souls for pride, for in Christ-like love no one ranks above another.

St. Silouan the Athonite

In going to church, think that you art going to the house of the King of Heaven, where with fear and joy one ought to stand as in heaven before the King of Heaven. While standing in church, do not look around to the sides and do not look at how someone is standing and praying, lest you be condemned with the Pharisee, since you did not come to judge others, but to ask for mercy for yourself from God the Judge and Knower of hearts. Gaze with compunction toward the altar alone, where the holy sacrifice is offered. More than anything else, beware of laughter and conversations, for whoever laughs or converses while standing in church does not render honor to the holy place and tempts others and prevents others from praying.

St. Tikhon of Zadonsk

If we have not committed the sins that others have, perhaps this is because we did not have the opportunity – the situation and circumstances were different. In each person there is something good and something bad; we usually see only the vices in people and we see nothing that is good.

St. Ambrose of Optina

I judge my own case: if the Lord so loved me, it must mean that He loves all sinners in the same measure as He loves me.

St. Silouan the Athonite

Unceasing prayer is born of love, while fault-finding, idle talk, and self-indulgence are the death of prayer.

St. Silouan the Athonite

Some people tell me that they are scandalized because they see many things wrong in the Church. I tell them that if you ask a fly, “Are there any flowers in this area?” it will say, “I don’t know about flowers, but over there in that heap of rubbish you can find all the filth you want.” And it will go on to list all the unclean things it has been to. 

Now, if you ask a honeybee, “Have you seen any unclean things in this area?” it will reply, “Unclean things? No, I have not seen any; the place here is full of the most fragrant flowers.” And it will go on to name all the flowers of the garden or the meadow. 

You see, the fly only knows where the unclean things are, while the honeybee knows where the beautiful iris or hyacinth is. As I have come to understand, some people resemble the honeybee and some resemble the fly. Those who resemble the fly seek to find evil in every circumstance and are preoccupied with it; they see no good anywhere. But those who resemble the honeybee only see the good in everything they see. 

The stupid person thinks stupidly and takes everything in the wrong way, whereas the person who has good thoughts, no matter what he sees, no matter what you tell him, maintains a positive and good thought.

St. Paisios of Mount Athos

To judge sins is the business of one who is sinless, but who is sinless except God? Who ever thinks about the multitude of his own sins in his heart never wants to make the sins of others a topic of conversation. To judge a man who has gone astray is a sign of pride, and God resists the proud. On the other hand, one who every hour prepares himself to give answer for his own sins will not quickly lift up his head to examine the mistakes of others.

St. Gennadius of Constantinople

These eight passions should be destroyed as follows: gluttony by self-control; unchastity by desire for God and longing for the blessings held in store; avarice by compassion for the poor; anger by goodwill and love for all men; worldly dejection by spiritual joy; listlessness by patience, perseverance and offering thanks to God; self-esteem by doing good in secret and by praying constantly with a contrite heart; and pride by not judging or despising anyone in the manner of the boastful Pharisee (cf. Luke 18 : 11–12), and by considering oneself the least of all men. When the intellect has been freed in this way from the passions we have described and been raised up to God, it will henceforth live the life of blessedness, receiving the pledge of the Holy Spirit (cf. 2 Cor. 1 : 22). And when it departs this life, dispassionate and full of true knowledge, it will stand before the light of the Holy Trinity and with the divine angels will shine in glory through all eternity.

St John of Damascus 

Christians should strive in all things and ought not to pass judgment of any kind on anyone, not on the prostitute nor on sinners nor on disorderly persons. But they should look upon all persons with a single mind and a pure eye so that it may be for such a person almost a natural and fixed attitude never to despise or judge or abhor anyone or to divide people and put them into boxes, for this is purity of heart, that, when you see the sinner and the weak, you have compassion and show mercy to them.

St. Makarios the Great

Why do we judge our neighbors? Because we shun knowing ourselves. Someone busy trying to understand himself has no time to notice the shortcomings of others. Judge yourself ... and you will stop judging others. Judge a poor deed, but do not judge the doer. It is necessary to consider yourself the most sinful of all, and to forgive your neighbor every poor deed.

St. Seraphim of Sarov

If we have true love with sympathy and patient labor, we shall not go about scrutinizing our neighbor's shortcomings. As it is said, "Charity shall cover the multitude of sins" (1 Peter 4:8). . . True love screens anything of this kind, as did the saints when they saw the shortcomings of men. Were they blind? Not at all! But they simply would not let their eyes dwell on sins.

St. Dorotheos of Gaza